Home / 885,732,411.80-1,328,598,617.70-425,559,618.20

Finding the Fourth Proportional to 885,732,411.80, 1,328,598,617.70 and 425,559,618.20

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Solution

The fourth proportional to 885,732,411.80, 1,328,598,617.70 and 425,559,618.20 is: 638,339,427.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,732,411.80 : 1,328,598,617.70 = 425,559,618.20 : x
  2. Step 2: Convert to fraction form
    885,732,411.80/1,328,598,617.70 = 425,559,618.20/x
  3. Step 3: Cross multiply
    885,732,411.80x = 1,328,598,617.70 × 425,559,618.20
  4. Step 4: Simplify right side
    885,732,411.80x = 565,397,920,489,459,776
  5. Step 5: Solve for x
    x = 565,397,920,489,459,776/885,732,411.80
  6. Step 6: Final answer
    x = 638,339,427.30

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Double scale
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1.5x scale

Why These Related Problems?

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