Home / 129,033,959.20-193,550,938.80-86,035,789.60

Finding the Fourth Proportional to 129,033,959.20, 193,550,938.80 and 86,035,789.60

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Solution

The fourth proportional to 129,033,959.20, 193,550,938.80 and 86,035,789.60 is: 129,053,684.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,033,959.20 : 193,550,938.80 = 86,035,789.60 : x
  2. Step 2: Convert to fraction form
    129,033,959.20/193,550,938.80 = 86,035,789.60/x
  3. Step 3: Cross multiply
    129,033,959.20x = 193,550,938.80 × 86,035,789.60
  4. Step 4: Simplify right side
    129,033,959.20x = 16,652,307,847,479,276
  5. Step 5: Solve for x
    x = 16,652,307,847,479,276/129,033,959.20
  6. Step 6: Final answer
    x = 129,053,684.40

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1.5x scale

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.