Home / 118,688,344.20-178,032,516.30-66,819,702.60

Finding the Fourth Proportional to 118,688,344.20, 178,032,516.30 and 66,819,702.60

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Solution

The fourth proportional to 118,688,344.20, 178,032,516.30 and 66,819,702.60 is: 100,229,553.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,688,344.20 : 178,032,516.30 = 66,819,702.60 : x
  2. Step 2: Convert to fraction form
    118,688,344.20/178,032,516.30 = 66,819,702.60/x
  3. Step 3: Cross multiply
    118,688,344.20x = 178,032,516.30 × 66,819,702.60
  4. Step 4: Simplify right side
    118,688,344.20x = 11,896,079,792,295,654
  5. Step 5: Solve for x
    x = 11,896,079,792,295,654/118,688,344.20
  6. Step 6: Final answer
    x = 100,229,553.90

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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.