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Finding the Fourth Proportional to 388,774,871.67, 583,577,293.85 and 167,555,385.71

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Solution

The fourth proportional to 388,774,871.67, 583,577,293.85 and 167,555,385.71 is: 251,511,930.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,774,871.67 : 583,577,293.85 = 167,555,385.71 : x
  2. Step 2: Convert to fraction form
    388,774,871.67/583,577,293.85 = 167,555,385.71/x
  3. Step 3: Cross multiply
    388,774,871.67x = 583,577,293.85 × 167,555,385.71
  4. Step 4: Simplify right side
    388,774,871.67x = 97,781,518,561,695,856
  5. Step 5: Solve for x
    x = 97,781,518,561,695,856/388,774,871.67
  6. Step 6: Final answer
    x = 251,511,930.65

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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.