Home / 309,337,711.43-428,010,159.85-269,727,781.01

Finding the Fourth Proportional to 309,337,711.43, 428,010,159.85 and 269,727,781.01

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Solution

The fourth proportional to 309,337,711.43, 428,010,159.85 and 269,727,781.01 is: 373,204,515.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,337,711.43 : 428,010,159.85 = 269,727,781.01 : x
  2. Step 2: Convert to fraction form
    309,337,711.43/428,010,159.85 = 269,727,781.01/x
  3. Step 3: Cross multiply
    309,337,711.43x = 428,010,159.85 × 269,727,781.01
  4. Step 4: Simplify right side
    309,337,711.43x = 115,446,230,663,261,536
  5. Step 5: Solve for x
    x = 115,446,230,663,261,536/309,337,711.43
  6. Step 6: Final answer
    x = 373,204,515.32

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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.