Home / 126,194,612.10-189,291,918.15-120,242,472.90

Finding the Fourth Proportional to 126,194,612.10, 189,291,918.15 and 120,242,472.90

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Solution

The fourth proportional to 126,194,612.10, 189,291,918.15 and 120,242,472.90 is: 180,363,709.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,194,612.10 : 189,291,918.15 = 120,242,472.90 : x
  2. Step 2: Convert to fraction form
    126,194,612.10/189,291,918.15 = 120,242,472.90/x
  3. Step 3: Cross multiply
    126,194,612.10x = 189,291,918.15 × 120,242,472.90
  4. Step 4: Simplify right side
    126,194,612.10x = 22,760,928,338,340,396
  5. Step 5: Solve for x
    x = 22,760,928,338,340,396/126,194,612.10
  6. Step 6: Final answer
    x = 180,363,709.35

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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.