Home / 57,119,840.85-78,823,170.45-31,013,761.28

Finding the Fourth Proportional to 57,119,840.85, 78,823,170.45 and 31,013,761.28

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Solution

The fourth proportional to 57,119,840.85, 78,823,170.45 and 31,013,761.28 is: 42,797,790.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,119,840.85 : 78,823,170.45 = 31,013,761.28 : x
  2. Step 2: Convert to fraction form
    57,119,840.85/78,823,170.45 = 31,013,761.28/x
  3. Step 3: Cross multiply
    57,119,840.85x = 78,823,170.45 × 31,013,761.28
  4. Step 4: Simplify right side
    57,119,840.85x = 2,444,602,991,274,934.50
  5. Step 5: Solve for x
    x = 2,444,602,991,274,934.50/57,119,840.85
  6. Step 6: Final answer
    x = 42,797,790.66

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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.