Home / 111,126,952.80-166,690,429.20-72,384,903.90

Finding the Fourth Proportional to 111,126,952.80, 166,690,429.20 and 72,384,903.90

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Solution

The fourth proportional to 111,126,952.80, 166,690,429.20 and 72,384,903.90 is: 108,577,355.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,126,952.80 : 166,690,429.20 = 72,384,903.90 : x
  2. Step 2: Convert to fraction form
    111,126,952.80/166,690,429.20 = 72,384,903.90/x
  3. Step 3: Cross multiply
    111,126,952.80x = 166,690,429.20 × 72,384,903.90
  4. Step 4: Simplify right side
    111,126,952.80x = 12,065,870,698,691,754
  5. Step 5: Solve for x
    x = 12,065,870,698,691,754/111,126,952.80
  6. Step 6: Final answer
    x = 108,577,355.85

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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.