Home / 129,422,034.60-194,133,051.90-115,313,260.20

Finding the Fourth Proportional to 129,422,034.60, 194,133,051.90 and 115,313,260.20

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Solution

The fourth proportional to 129,422,034.60, 194,133,051.90 and 115,313,260.20 is: 172,969,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,422,034.60 : 194,133,051.90 = 115,313,260.20 : x
  2. Step 2: Convert to fraction form
    129,422,034.60/194,133,051.90 = 115,313,260.20/x
  3. Step 3: Cross multiply
    129,422,034.60x = 194,133,051.90 × 115,313,260.20
  4. Step 4: Simplify right side
    129,422,034.60x = 22,386,115,127,164,804
  5. Step 5: Solve for x
    x = 22,386,115,127,164,804/129,422,034.60
  6. Step 6: Final answer
    x = 172,969,890.30

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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.