Home / 126,301,282.80-189,451,924.20-71,881,724.40

Finding the Fourth Proportional to 126,301,282.80, 189,451,924.20 and 71,881,724.40

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Solution

The fourth proportional to 126,301,282.80, 189,451,924.20 and 71,881,724.40 is: 107,822,586.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,301,282.80 : 189,451,924.20 = 71,881,724.40 : x
  2. Step 2: Convert to fraction form
    126,301,282.80/189,451,924.20 = 71,881,724.40/x
  3. Step 3: Cross multiply
    126,301,282.80x = 189,451,924.20 × 71,881,724.40
  4. Step 4: Simplify right side
    126,301,282.80x = 13,618,131,002,394,090
  5. Step 5: Solve for x
    x = 13,618,131,002,394,090/126,301,282.80
  6. Step 6: Final answer
    x = 107,822,586.60

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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.