Home / 219,876,307.20-329,851,785.60-66,521,145.60

Finding the Fourth Proportional to 219,876,307.20, 329,851,785.60 and 66,521,145.60

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Solution

The fourth proportional to 219,876,307.20, 329,851,785.60 and 66,521,145.60 is: 99,793,010.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,876,307.20 : 329,851,785.60 = 66,521,145.60 : x
  2. Step 2: Convert to fraction form
    219,876,307.20/329,851,785.60 = 66,521,145.60/x
  3. Step 3: Cross multiply
    219,876,307.20x = 329,851,785.60 × 66,521,145.60
  4. Step 4: Simplify right side
    219,876,307.20x = 21,942,118,656,317,584
  5. Step 5: Solve for x
    x = 21,942,118,656,317,584/219,876,307.20
  6. Step 6: Final answer
    x = 99,793,010.61

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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.