Home / 555,384,916.38-766,426,938-304,486,305.90

Finding the Fourth Proportional to 555,384,916.38, 766,426,938 and 304,486,305.90

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Solution

The fourth proportional to 555,384,916.38, 766,426,938 and 304,486,305.90 is: 420,188,773.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,384,916.38 : 766,426,938 = 304,486,305.90 : x
  2. Step 2: Convert to fraction form
    555,384,916.38/766,426,938 = 304,486,305.90/x
  3. Step 3: Cross multiply
    555,384,916.38x = 766,426,938 × 304,486,305.90
  4. Step 4: Simplify right side
    555,384,916.38x = 233,366,507,093,868,320
  5. Step 5: Solve for x
    x = 233,366,507,093,868,320/555,384,916.38
  6. Step 6: Final answer
    x = 420,188,773.97

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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.