Home / 99,648,117.45-149,472,176.18-86,016,655.80

Finding the Fourth Proportional to 99,648,117.45, 149,472,176.18 and 86,016,655.80

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Solution

The fourth proportional to 99,648,117.45, 149,472,176.18 and 86,016,655.80 is: 129,024,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,648,117.45 : 149,472,176.18 = 86,016,655.80 : x
  2. Step 2: Convert to fraction form
    99,648,117.45/149,472,176.18 = 86,016,655.80/x
  3. Step 3: Cross multiply
    99,648,117.45x = 149,472,176.18 × 86,016,655.80
  4. Step 4: Simplify right side
    99,648,117.45x = 12,857,096,729,721,936
  5. Step 5: Solve for x
    x = 12,857,096,729,721,936/99,648,117.45
  6. Step 6: Final answer
    x = 129,024,983.70

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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.