Home / 1,227,657,382.20-1,694,147,363.82-670,728,442.68

Finding the Fourth Proportional to 1,227,657,382.20, 1,694,147,363.82 and 670,728,442.68

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Solution

The fourth proportional to 1,227,657,382.20, 1,694,147,363.82 and 670,728,442.68 is: 925,594,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,657,382.20 : 1,694,147,363.82 = 670,728,442.68 : x
  2. Step 2: Convert to fraction form
    1,227,657,382.20/1,694,147,363.82 = 670,728,442.68/x
  3. Step 3: Cross multiply
    1,227,657,382.20x = 1,694,147,363.82 × 670,728,442.68
  4. Step 4: Simplify right side
    1,227,657,382.20x = 1,136,312,823,005,415,808
  5. Step 5: Solve for x
    x = 1,136,312,823,005,415,808/1,227,657,382.20
  6. Step 6: Final answer
    x = 925,594,420.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.