Home / 77,287,998.40-115,931,997.60-73,508,862.40

Finding the Fourth Proportional to 77,287,998.40, 115,931,997.60 and 73,508,862.40

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Solution

The fourth proportional to 77,287,998.40, 115,931,997.60 and 73,508,862.40 is: 110,263,293.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,287,998.40 : 115,931,997.60 = 73,508,862.40 : x
  2. Step 2: Convert to fraction form
    77,287,998.40/115,931,997.60 = 73,508,862.40/x
  3. Step 3: Cross multiply
    77,287,998.40x = 115,931,997.60 × 73,508,862.40
  4. Step 4: Simplify right side
    77,287,998.40x = 8,522,029,259,335,530
  5. Step 5: Solve for x
    x = 8,522,029,259,335,530/77,287,998.40
  6. Step 6: Final answer
    x = 110,263,293.60

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Similar ratio
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1.5x scale

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.