Home / 129,348,129.60-194,049,151.20-43,113,326.40

Finding the Fourth Proportional to 129,348,129.60, 194,049,151.20 and 43,113,326.40

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Solution

The fourth proportional to 129,348,129.60, 194,049,151.20 and 43,113,326.40 is: 64,678,974.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,348,129.60 : 194,049,151.20 = 43,113,326.40 : x
  2. Step 2: Convert to fraction form
    129,348,129.60/194,049,151.20 = 43,113,326.40/x
  3. Step 3: Cross multiply
    129,348,129.60x = 194,049,151.20 × 43,113,326.40
  4. Step 4: Simplify right side
    129,348,129.60x = 8,366,104,393,328,551
  5. Step 5: Solve for x
    x = 8,366,104,393,328,551/129,348,129.60
  6. Step 6: Final answer
    x = 64,678,974.63

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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.