Home / 126,189,209.10-189,283,813.65-45,381,017.10

Finding the Fourth Proportional to 126,189,209.10, 189,283,813.65 and 45,381,017.10

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Solution

The fourth proportional to 126,189,209.10, 189,283,813.65 and 45,381,017.10 is: 68,071,525.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,189,209.10 : 189,283,813.65 = 45,381,017.10 : x
  2. Step 2: Convert to fraction form
    126,189,209.10/189,283,813.65 = 45,381,017.10/x
  3. Step 3: Cross multiply
    126,189,209.10x = 189,283,813.65 × 45,381,017.10
  4. Step 4: Simplify right side
    126,189,209.10x = 8,589,891,984,003,864
  5. Step 5: Solve for x
    x = 8,589,891,984,003,864/126,189,209.10
  6. Step 6: Final answer
    x = 68,071,525.65

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Similar ratio
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1.5x scale

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.