Home / 56,890,027.56-78,508,446.12-30,784,545.60

Finding the Fourth Proportional to 56,890,027.56, 78,508,446.12 and 30,784,545.60

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Solution

The fourth proportional to 56,890,027.56, 78,508,446.12 and 30,784,545.60 is: 42,482,785.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,890,027.56 : 78,508,446.12 = 30,784,545.60 : x
  2. Step 2: Convert to fraction form
    56,890,027.56/78,508,446.12 = 30,784,545.60/x
  3. Step 3: Cross multiply
    56,890,027.56x = 78,508,446.12 × 30,784,545.60
  4. Step 4: Simplify right side
    56,890,027.56x = 2,416,846,839,566,283.50
  5. Step 5: Solve for x
    x = 2,416,846,839,566,283.50/56,890,027.56
  6. Step 6: Final answer
    x = 42,482,785.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.