Home / 82,998,010.20-124,497,015.30-39,856,810.80

Finding the Fourth Proportional to 82,998,010.20, 124,497,015.30 and 39,856,810.80

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Solution

The fourth proportional to 82,998,010.20, 124,497,015.30 and 39,856,810.80 is: 59,785,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,998,010.20 : 124,497,015.30 = 39,856,810.80 : x
  2. Step 2: Convert to fraction form
    82,998,010.20/124,497,015.30 = 39,856,810.80/x
  3. Step 3: Cross multiply
    82,998,010.20x = 124,497,015.30 × 39,856,810.80
  4. Step 4: Simplify right side
    82,998,010.20x = 4,962,053,983,976,805
  5. Step 5: Solve for x
    x = 4,962,053,983,976,805/82,998,010.20
  6. Step 6: Final answer
    x = 59,785,216.20

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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.