Home / 390,677,356.17-539,114,952.59-231,914,265.41

Finding the Fourth Proportional to 390,677,356.17, 539,114,952.59 and 231,914,265.41

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Solution

The fourth proportional to 390,677,356.17, 539,114,952.59 and 231,914,265.41 is: 320,029,933.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,677,356.17 : 539,114,952.59 = 231,914,265.41 : x
  2. Step 2: Convert to fraction form
    390,677,356.17/539,114,952.59 = 231,914,265.41/x
  3. Step 3: Cross multiply
    390,677,356.17x = 539,114,952.59 × 231,914,265.41
  4. Step 4: Simplify right side
    390,677,356.17x = 125,028,448,202,514,720
  5. Step 5: Solve for x
    x = 125,028,448,202,514,720/390,677,356.17
  6. Step 6: Final answer
    x = 320,029,933.21

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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.