Home / 129,565,915.20-193,970,959.20-115,961,025.60

Finding the Fourth Proportional to 129,565,915.20, 193,970,959.20 and 115,961,025.60

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Solution

The fourth proportional to 129,565,915.20, 193,970,959.20 and 115,961,025.60 is: 173,603,307.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,565,915.20 : 193,970,959.20 = 115,961,025.60 : x
  2. Step 2: Convert to fraction form
    129,565,915.20/193,970,959.20 = 115,961,025.60/x
  3. Step 3: Cross multiply
    129,565,915.20x = 193,970,959.20 × 115,961,025.60
  4. Step 4: Simplify right side
    129,565,915.20x = 22,493,071,365,447,752
  5. Step 5: Solve for x
    x = 22,493,071,365,447,752/129,565,915.20
  6. Step 6: Final answer
    x = 173,603,307.09

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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.