Home / 78,894,175.40-118,341,263.10-75,870,866.60

Finding the Fourth Proportional to 78,894,175.40, 118,341,263.10 and 75,870,866.60

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Solution

The fourth proportional to 78,894,175.40, 118,341,263.10 and 75,870,866.60 is: 113,806,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,894,175.40 : 118,341,263.10 = 75,870,866.60 : x
  2. Step 2: Convert to fraction form
    78,894,175.40/118,341,263.10 = 75,870,866.60/x
  3. Step 3: Cross multiply
    78,894,175.40x = 118,341,263.10 × 75,870,866.60
  4. Step 4: Simplify right side
    78,894,175.40x = 8,978,654,185,935,601
  5. Step 5: Solve for x
    x = 8,978,654,185,935,601/78,894,175.40
  6. Step 6: Final answer
    x = 113,806,299.90

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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.