Home / 126,038,217.80-189,057,326.70-71,618,659.40

Finding the Fourth Proportional to 126,038,217.80, 189,057,326.70 and 71,618,659.40

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Solution

The fourth proportional to 126,038,217.80, 189,057,326.70 and 71,618,659.40 is: 107,427,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,038,217.80 : 189,057,326.70 = 71,618,659.40 : x
  2. Step 2: Convert to fraction form
    126,038,217.80/189,057,326.70 = 71,618,659.40/x
  3. Step 3: Cross multiply
    126,038,217.80x = 189,057,326.70 × 71,618,659.40
  4. Step 4: Simplify right side
    126,038,217.80x = 13,540,032,288,001,826
  5. Step 5: Solve for x
    x = 13,540,032,288,001,826/126,038,217.80
  6. Step 6: Final answer
    x = 107,427,989.10

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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.