Home / 82,013,805.60-122,936,727.60-47,917,600.80

Finding the Fourth Proportional to 82,013,805.60, 122,936,727.60 and 47,917,600.80

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Solution

The fourth proportional to 82,013,805.60, 122,936,727.60 and 47,917,600.80 is: 71,827,334.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,013,805.60 : 122,936,727.60 = 47,917,600.80 : x
  2. Step 2: Convert to fraction form
    82,013,805.60/122,936,727.60 = 47,917,600.80/x
  3. Step 3: Cross multiply
    82,013,805.60x = 122,936,727.60 × 47,917,600.80
  4. Step 4: Simplify right side
    82,013,805.60x = 5,890,833,036,795,141
  5. Step 5: Solve for x
    x = 5,890,833,036,795,141/82,013,805.60
  6. Step 6: Final answer
    x = 71,827,334.36

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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.