Home / 45,399,836.80-67,987,780.80-30,171,318.40

Finding the Fourth Proportional to 45,399,836.80, 67,987,780.80 and 30,171,318.40

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Solution

The fourth proportional to 45,399,836.80, 67,987,780.80 and 30,171,318.40 is: 45,182,562.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,399,836.80 : 67,987,780.80 = 30,171,318.40 : x
  2. Step 2: Convert to fraction form
    45,399,836.80/67,987,780.80 = 30,171,318.40/x
  3. Step 3: Cross multiply
    45,399,836.80x = 67,987,780.80 × 30,171,318.40
  4. Step 4: Simplify right side
    45,399,836.80x = 2,051,280,981,826,206.50
  5. Step 5: Solve for x
    x = 2,051,280,981,826,206.50/45,399,836.80
  6. Step 6: Final answer
    x = 45,182,562.90

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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.