Home / 83,009,821.60-124,550,161.80-39,856,812.40

Finding the Fourth Proportional to 83,009,821.60, 124,550,161.80 and 39,856,812.40

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Solution

The fourth proportional to 83,009,821.60, 124,550,161.80 and 39,856,812.40 is: 59,802,229.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,009,821.60 : 124,550,161.80 = 39,856,812.40 : x
  2. Step 2: Convert to fraction form
    83,009,821.60/124,550,161.80 = 39,856,812.40/x
  3. Step 3: Cross multiply
    83,009,821.60x = 124,550,161.80 × 39,856,812.40
  4. Step 4: Simplify right side
    83,009,821.60x = 4,964,172,433,252,246
  5. Step 5: Solve for x
    x = 4,964,172,433,252,246/83,009,821.60
  6. Step 6: Final answer
    x = 59,802,229.88

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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.