Home / 146,767,935.20-220,319,864.40-86,217,778.40

Finding the Fourth Proportional to 146,767,935.20, 220,319,864.40 and 86,217,778.40

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Solution

The fourth proportional to 146,767,935.20, 220,319,864.40 and 86,217,778.40 is: 129,425,335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,767,935.20 : 220,319,864.40 = 86,217,778.40 : x
  2. Step 2: Convert to fraction form
    146,767,935.20/220,319,864.40 = 86,217,778.40/x
  3. Step 3: Cross multiply
    146,767,935.20x = 220,319,864.40 × 86,217,778.40
  4. Step 4: Simplify right side
    146,767,935.20x = 18,995,489,245,957,252
  5. Step 5: Solve for x
    x = 18,995,489,245,957,252/146,767,935.20
  6. Step 6: Final answer
    x = 129,425,335.45

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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.