Home / 78,724,857.60-118,087,286.40-44,287,480.80

Finding the Fourth Proportional to 78,724,857.60, 118,087,286.40 and 44,287,480.80

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Solution

The fourth proportional to 78,724,857.60, 118,087,286.40 and 44,287,480.80 is: 66,431,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,724,857.60 : 118,087,286.40 = 44,287,480.80 : x
  2. Step 2: Convert to fraction form
    78,724,857.60/118,087,286.40 = 44,287,480.80/x
  3. Step 3: Cross multiply
    78,724,857.60x = 118,087,286.40 × 44,287,480.80
  4. Step 4: Simplify right side
    78,724,857.60x = 5,229,788,429,164,101
  5. Step 5: Solve for x
    x = 5,229,788,429,164,101/78,724,857.60
  6. Step 6: Final answer
    x = 66,431,221.20

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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.