Home / 83,009,839.60-124,550,188.80-39,856,830.40

Finding the Fourth Proportional to 83,009,839.60, 124,550,188.80 and 39,856,830.40

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Solution

The fourth proportional to 83,009,839.60, 124,550,188.80 and 39,856,830.40 is: 59,802,256.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,009,839.60 : 124,550,188.80 = 39,856,830.40 : x
  2. Step 2: Convert to fraction form
    83,009,839.60/124,550,188.80 = 39,856,830.40/x
  3. Step 3: Cross multiply
    83,009,839.60x = 124,550,188.80 × 39,856,830.40
  4. Step 4: Simplify right side
    83,009,839.60x = 4,964,175,751,289,579
  5. Step 5: Solve for x
    x = 4,964,175,751,289,579/83,009,839.60
  6. Step 6: Final answer
    x = 59,802,256.88

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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.