Home / 129,960,887.20-194,941,330.80-115,852,112.80

Finding the Fourth Proportional to 129,960,887.20, 194,941,330.80 and 115,852,112.80

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Solution

The fourth proportional to 129,960,887.20, 194,941,330.80 and 115,852,112.80 is: 173,778,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,960,887.20 : 194,941,330.80 = 115,852,112.80 : x
  2. Step 2: Convert to fraction form
    129,960,887.20/194,941,330.80 = 115,852,112.80/x
  3. Step 3: Cross multiply
    129,960,887.20x = 194,941,330.80 × 115,852,112.80
  4. Step 4: Simplify right side
    129,960,887.20x = 22,584,365,045,223,716
  5. Step 5: Solve for x
    x = 22,584,365,045,223,716/129,960,887.20
  6. Step 6: Final answer
    x = 173,778,169.20

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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.