Home / 145,536,337.30-218,304,505.95-72,764,349.70

Finding the Fourth Proportional to 145,536,337.30, 218,304,505.95 and 72,764,349.70

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Solution

The fourth proportional to 145,536,337.30, 218,304,505.95 and 72,764,349.70 is: 109,146,524.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,536,337.30 : 218,304,505.95 = 72,764,349.70 : x
  2. Step 2: Convert to fraction form
    145,536,337.30/218,304,505.95 = 72,764,349.70/x
  3. Step 3: Cross multiply
    145,536,337.30x = 218,304,505.95 × 72,764,349.70
  4. Step 4: Simplify right side
    145,536,337.30x = 15,884,785,412,031,530
  5. Step 5: Solve for x
    x = 15,884,785,412,031,530/145,536,337.30
  6. Step 6: Final answer
    x = 109,146,524.55

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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.