Home / 171,166,375.18-256,872,148.78-72,867,000.52

Finding the Fourth Proportional to 171,166,375.18, 256,872,148.78 and 72,867,000.52

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Solution

The fourth proportional to 171,166,375.18, 256,872,148.78 and 72,867,000.52 is: 109,352,686.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,166,375.18 : 256,872,148.78 = 72,867,000.52 : x
  2. Step 2: Convert to fraction form
    171,166,375.18/256,872,148.78 = 72,867,000.52/x
  3. Step 3: Cross multiply
    171,166,375.18x = 256,872,148.78 × 72,867,000.52
  4. Step 4: Simplify right side
    171,166,375.18x = 18,717,502,998,725,776
  5. Step 5: Solve for x
    x = 18,717,502,998,725,776/171,166,375.18
  6. Step 6: Final answer
    x = 109,352,686.70

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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.