Home / 129,298,435.20-194,171,601.60-68,832,259.20

Finding the Fourth Proportional to 129,298,435.20, 194,171,601.60 and 68,832,259.20

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Solution

The fourth proportional to 129,298,435.20, 194,171,601.60 and 68,832,259.20 is: 103,367,608.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,298,435.20 : 194,171,601.60 = 68,832,259.20 : x
  2. Step 2: Convert to fraction form
    129,298,435.20/194,171,601.60 = 68,832,259.20/x
  3. Step 3: Cross multiply
    129,298,435.20x = 194,171,601.60 × 68,832,259.20
  4. Step 4: Simplify right side
    129,298,435.20x = 13,365,270,010,610,334
  5. Step 5: Solve for x
    x = 13,365,270,010,610,334/129,298,435.20
  6. Step 6: Final answer
    x = 103,367,608.35

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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.