Home / 87,050,494.61-120,129,678.60-47,891,431.31

Finding the Fourth Proportional to 87,050,494.61, 120,129,678.60 and 47,891,431.31

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Solution

The fourth proportional to 87,050,494.61, 120,129,678.60 and 47,891,431.31 is: 66,090,173.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,050,494.61 : 120,129,678.60 = 47,891,431.31 : x
  2. Step 2: Convert to fraction form
    87,050,494.61/120,129,678.60 = 47,891,431.31/x
  3. Step 3: Cross multiply
    87,050,494.61x = 120,129,678.60 × 47,891,431.31
  4. Step 4: Simplify right side
    87,050,494.61x = 5,753,182,250,964,277
  5. Step 5: Solve for x
    x = 5,753,182,250,964,277/87,050,494.61
  6. Step 6: Final answer
    x = 66,090,173.03

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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.