Home / 1,317,247,870.20-1,975,871,805.30-347,899,486.20

Finding the Fourth Proportional to 1,317,247,870.20, 1,975,871,805.30 and 347,899,486.20

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Solution

The fourth proportional to 1,317,247,870.20, 1,975,871,805.30 and 347,899,486.20 is: 521,849,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,247,870.20 : 1,975,871,805.30 = 347,899,486.20 : x
  2. Step 2: Convert to fraction form
    1,317,247,870.20/1,975,871,805.30 = 347,899,486.20/x
  3. Step 3: Cross multiply
    1,317,247,870.20x = 1,975,871,805.30 × 347,899,486.20
  4. Step 4: Simplify right side
    1,317,247,870.20x = 687,404,785,860,936,448
  5. Step 5: Solve for x
    x = 687,404,785,860,936,448/1,317,247,870.20
  6. Step 6: Final answer
    x = 521,849,229.30

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Half scale
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Double scale
Find fourth proportional to 1,317,247,871.20, 1,975,871,806.80 and 347,899,487.20
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.