Home / 81,677,793.60-122,516,690.40-38,631,072.60

Finding the Fourth Proportional to 81,677,793.60, 122,516,690.40 and 38,631,072.60

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Solution

The fourth proportional to 81,677,793.60, 122,516,690.40 and 38,631,072.60 is: 57,946,608.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,677,793.60 : 122,516,690.40 = 38,631,072.60 : x
  2. Step 2: Convert to fraction form
    81,677,793.60/122,516,690.40 = 38,631,072.60/x
  3. Step 3: Cross multiply
    81,677,793.60x = 122,516,690.40 × 38,631,072.60
  4. Step 4: Simplify right side
    81,677,793.60x = 4,732,951,161,554,123
  5. Step 5: Solve for x
    x = 4,732,951,161,554,123/81,677,793.60
  6. Step 6: Final answer
    x = 57,946,608.90

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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.