Home / 57,106,228.05-78,807,553.07-31,000,745.86

Finding the Fourth Proportional to 57,106,228.05, 78,807,553.07 and 31,000,745.86

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Solution

The fourth proportional to 57,106,228.05, 78,807,553.07 and 31,000,745.86 is: 42,781,549.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,106,228.05 : 78,807,553.07 = 31,000,745.86 : x
  2. Step 2: Convert to fraction form
    57,106,228.05/78,807,553.07 = 31,000,745.86/x
  3. Step 3: Cross multiply
    57,106,228.05x = 78,807,553.07 × 31,000,745.86
  4. Step 4: Simplify right side
    57,106,228.05x = 2,443,092,924,219,510
  5. Step 5: Solve for x
    x = 2,443,092,924,219,510/57,106,228.05
  6. Step 6: Final answer
    x = 42,781,549.54

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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.