Home / 126,025,687.20-189,038,530.80-30,287,575.20

Finding the Fourth Proportional to 126,025,687.20, 189,038,530.80 and 30,287,575.20

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Solution

The fourth proportional to 126,025,687.20, 189,038,530.80 and 30,287,575.20 is: 45,431,362.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,025,687.20 : 189,038,530.80 = 30,287,575.20 : x
  2. Step 2: Convert to fraction form
    126,025,687.20/189,038,530.80 = 30,287,575.20/x
  3. Step 3: Cross multiply
    126,025,687.20x = 189,038,530.80 × 30,287,575.20
  4. Step 4: Simplify right side
    126,025,687.20x = 5,725,518,717,302,516
  5. Step 5: Solve for x
    x = 5,725,518,717,302,516/126,025,687.20
  6. Step 6: Final answer
    x = 45,431,362.80

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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.