Home / 9,121,142.22-12,587,175.87-4,991,173.71

Finding the Fourth Proportional to 9,121,142.22, 12,587,175.87 and 4,991,173.71

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Solution

The fourth proportional to 9,121,142.22, 12,587,175.87 and 4,991,173.71 is: 6,887,819.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121,142.22 : 12,587,175.87 = 4,991,173.71 : x
  2. Step 2: Convert to fraction form
    9,121,142.22/12,587,175.87 = 4,991,173.71/x
  3. Step 3: Cross multiply
    9,121,142.22x = 12,587,175.87 × 4,991,173.71
  4. Step 4: Simplify right side
    9,121,142.22x = 62,824,781,285,490.38
  5. Step 5: Solve for x
    x = 62,824,781,285,490.38/9,121,142.22
  6. Step 6: Final answer
    x = 6,887,819.50

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1.5x scale

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.