Home / 85,671,591.27-128,580,766.20-85,026,731.19

Finding the Fourth Proportional to 85,671,591.27, 128,580,766.20 and 85,026,731.19

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Solution

The fourth proportional to 85,671,591.27, 128,580,766.20 and 85,026,731.19 is: 127,612,923.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,671,591.27 : 128,580,766.20 = 85,026,731.19 : x
  2. Step 2: Convert to fraction form
    85,671,591.27/128,580,766.20 = 85,026,731.19/x
  3. Step 3: Cross multiply
    85,671,591.27x = 128,580,766.20 × 85,026,731.19
  4. Step 4: Simplify right side
    85,671,591.27x = 10,932,802,243,891,638
  5. Step 5: Solve for x
    x = 10,932,802,243,891,638/85,671,591.27
  6. Step 6: Final answer
    x = 127,612,923.75

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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.