Home / 487,205,134.13-730,515,853.82-155,068,678.59

Finding the Fourth Proportional to 487,205,134.13, 730,515,853.82 and 155,068,678.59

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Solution

The fourth proportional to 487,205,134.13, 730,515,853.82 and 155,068,678.59 is: 232,510,128.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,205,134.13 : 730,515,853.82 = 155,068,678.59 : x
  2. Step 2: Convert to fraction form
    487,205,134.13/730,515,853.82 = 155,068,678.59/x
  3. Step 3: Cross multiply
    487,205,134.13x = 730,515,853.82 × 155,068,678.59
  4. Step 4: Simplify right side
    487,205,134.13x = 113,280,128,138,311,376
  5. Step 5: Solve for x
    x = 113,280,128,138,311,376/487,205,134.13
  6. Step 6: Final answer
    x = 232,510,128.08

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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.