Home / 57,115,996.80-78,819,614.40-31,009,996.80

Finding the Fourth Proportional to 57,115,996.80, 78,819,614.40 and 31,009,996.80

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Solution

The fourth proportional to 57,115,996.80, 78,819,614.40 and 31,009,996.80 is: 42,793,545.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,115,996.80 : 78,819,614.40 = 31,009,996.80 : x
  2. Step 2: Convert to fraction form
    57,115,996.80/78,819,614.40 = 31,009,996.80/x
  3. Step 3: Cross multiply
    57,115,996.80x = 78,819,614.40 × 31,009,996.80
  4. Step 4: Simplify right side
    57,115,996.80x = 2,444,195,990,321,234
  5. Step 5: Solve for x
    x = 2,444,195,990,321,234/57,115,996.80
  6. Step 6: Final answer
    x = 42,793,545.19

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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.