Home / 366,979,590.40-550,469,385.60-203,720,915.20

Finding the Fourth Proportional to 366,979,590.40, 550,469,385.60 and 203,720,915.20

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Solution

The fourth proportional to 366,979,590.40, 550,469,385.60 and 203,720,915.20 is: 305,581,372.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,979,590.40 : 550,469,385.60 = 203,720,915.20 : x
  2. Step 2: Convert to fraction form
    366,979,590.40/550,469,385.60 = 203,720,915.20/x
  3. Step 3: Cross multiply
    366,979,590.40x = 550,469,385.60 × 203,720,915.20
  4. Step 4: Simplify right side
    366,979,590.40x = 112,142,127,024,013,696
  5. Step 5: Solve for x
    x = 112,142,127,024,013,696/366,979,590.40
  6. Step 6: Final answer
    x = 305,581,372.80

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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.