Home / 126,038,216.80-189,057,325.20-71,618,658.40

Finding the Fourth Proportional to 126,038,216.80, 189,057,325.20 and 71,618,658.40

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Solution

The fourth proportional to 126,038,216.80, 189,057,325.20 and 71,618,658.40 is: 107,427,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,038,216.80 : 189,057,325.20 = 71,618,658.40 : x
  2. Step 2: Convert to fraction form
    126,038,216.80/189,057,325.20 = 71,618,658.40/x
  3. Step 3: Cross multiply
    126,038,216.80x = 189,057,325.20 × 71,618,658.40
  4. Step 4: Simplify right side
    126,038,216.80x = 13,540,031,991,516,512
  5. Step 5: Solve for x
    x = 13,540,031,991,516,512/126,038,216.80
  6. Step 6: Final answer
    x = 107,427,987.60

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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.