Home / 82,013,862.60-122,936,813.10-47,917,657.80

Finding the Fourth Proportional to 82,013,862.60, 122,936,813.10 and 47,917,657.80

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Solution

The fourth proportional to 82,013,862.60, 122,936,813.10 and 47,917,657.80 is: 71,827,419.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,013,862.60 : 122,936,813.10 = 47,917,657.80 : x
  2. Step 2: Convert to fraction form
    82,013,862.60/122,936,813.10 = 47,917,657.80/x
  3. Step 3: Cross multiply
    82,013,862.60x = 122,936,813.10 × 47,917,657.80
  4. Step 4: Simplify right side
    82,013,862.60x = 5,890,844,141,148,357
  5. Step 5: Solve for x
    x = 5,890,844,141,148,357/82,013,862.60
  6. Step 6: Final answer
    x = 71,827,419.83

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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.