Home / 129,276,665.70-193,914,998.55-100,366,275.30

Finding the Fourth Proportional to 129,276,665.70, 193,914,998.55 and 100,366,275.30

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Solution

The fourth proportional to 129,276,665.70, 193,914,998.55 and 100,366,275.30 is: 150,549,412.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,276,665.70 : 193,914,998.55 = 100,366,275.30 : x
  2. Step 2: Convert to fraction form
    129,276,665.70/193,914,998.55 = 100,366,275.30/x
  3. Step 3: Cross multiply
    129,276,665.70x = 193,914,998.55 × 100,366,275.30
  4. Step 4: Simplify right side
    129,276,665.70x = 19,462,526,129,268,400
  5. Step 5: Solve for x
    x = 19,462,526,129,268,400/129,276,665.70
  6. Step 6: Final answer
    x = 150,549,412.95

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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.