Home / 82,518,194.16-123,781,402.80-31,404,174.48

Finding the Fourth Proportional to 82,518,194.16, 123,781,402.80 and 31,404,174.48

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Solution

The fourth proportional to 82,518,194.16, 123,781,402.80 and 31,404,174.48 is: 47,107,826.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,518,194.16 : 123,781,402.80 = 31,404,174.48 : x
  2. Step 2: Convert to fraction form
    82,518,194.16/123,781,402.80 = 31,404,174.48/x
  3. Step 3: Cross multiply
    82,518,194.16x = 123,781,402.80 × 31,404,174.48
  4. Step 4: Simplify right side
    82,518,194.16x = 3,887,252,770,910,360.50
  5. Step 5: Solve for x
    x = 3,887,252,770,910,360.50/82,518,194.16
  6. Step 6: Final answer
    x = 47,107,826.47

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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.