Home / 386,325,308.10-579,487,962.15-127,580,463.30

Finding the Fourth Proportional to 386,325,308.10, 579,487,962.15 and 127,580,463.30

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Solution

The fourth proportional to 386,325,308.10, 579,487,962.15 and 127,580,463.30 is: 191,370,694.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,325,308.10 : 579,487,962.15 = 127,580,463.30 : x
  2. Step 2: Convert to fraction form
    386,325,308.10/579,487,962.15 = 127,580,463.30/x
  3. Step 3: Cross multiply
    386,325,308.10x = 579,487,962.15 × 127,580,463.30
  4. Step 4: Simplify right side
    386,325,308.10x = 73,931,342,687,869,856
  5. Step 5: Solve for x
    x = 73,931,342,687,869,856/386,325,308.10
  6. Step 6: Final answer
    x = 191,370,694.95

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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.