Home / 1,247,950,822.20-1,871,926,233.30-885,153,766.20

Finding the Fourth Proportional to 1,247,950,822.20, 1,871,926,233.30 and 885,153,766.20

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Solution

The fourth proportional to 1,247,950,822.20, 1,871,926,233.30 and 885,153,766.20 is: 1,327,730,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,950,822.20 : 1,871,926,233.30 = 885,153,766.20 : x
  2. Step 2: Convert to fraction form
    1,247,950,822.20/1,871,926,233.30 = 885,153,766.20/x
  3. Step 3: Cross multiply
    1,247,950,822.20x = 1,871,926,233.30 × 885,153,766.20
  4. Step 4: Simplify right side
    1,247,950,822.20x = 1,656,942,555,454,074,880
  5. Step 5: Solve for x
    x = 1,656,942,555,454,074,880/1,247,950,822.20
  6. Step 6: Final answer
    x = 1,327,730,649.30

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Half scale
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Double scale
Find fourth proportional to 1,247,950,823.20, 1,871,926,234.80 and 885,153,767.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.