Home / 126,747,019.18-189,793,098.06-87,476,449.60

Finding the Fourth Proportional to 126,747,019.18, 189,793,098.06 and 87,476,449.60

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Solution

The fourth proportional to 126,747,019.18, 189,793,098.06 and 87,476,449.60 is: 130,988,692.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,747,019.18 : 189,793,098.06 = 87,476,449.60 : x
  2. Step 2: Convert to fraction form
    126,747,019.18/189,793,098.06 = 87,476,449.60/x
  3. Step 3: Cross multiply
    126,747,019.18x = 189,793,098.06 × 87,476,449.60
  4. Step 4: Simplify right side
    126,747,019.18x = 16,602,426,376,873,446
  5. Step 5: Solve for x
    x = 16,602,426,376,873,446/126,747,019.18
  6. Step 6: Final answer
    x = 130,988,692.94

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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.