Home / 82,787,750.40-124,181,625.60-81,444,057.60

Finding the Fourth Proportional to 82,787,750.40, 124,181,625.60 and 81,444,057.60

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Solution

The fourth proportional to 82,787,750.40, 124,181,625.60 and 81,444,057.60 is: 122,166,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,787,750.40 : 124,181,625.60 = 81,444,057.60 : x
  2. Step 2: Convert to fraction form
    82,787,750.40/124,181,625.60 = 81,444,057.60/x
  3. Step 3: Cross multiply
    82,787,750.40x = 124,181,625.60 × 81,444,057.60
  4. Step 4: Simplify right side
    82,787,750.40x = 10,113,855,468,228,034
  5. Step 5: Solve for x
    x = 10,113,855,468,228,034/82,787,750.40
  6. Step 6: Final answer
    x = 122,166,086.40

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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.