Home / 126,399,200.40-189,604,049.40-40,135,172.40

Finding the Fourth Proportional to 126,399,200.40, 189,604,049.40 and 40,135,172.40

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Solution

The fourth proportional to 126,399,200.40, 189,604,049.40 and 40,135,172.40 is: 60,204,425.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,399,200.40 : 189,604,049.40 = 40,135,172.40 : x
  2. Step 2: Convert to fraction form
    126,399,200.40/189,604,049.40 = 40,135,172.40/x
  3. Step 3: Cross multiply
    126,399,200.40x = 189,604,049.40 × 40,135,172.40
  4. Step 4: Simplify right side
    126,399,200.40x = 7,609,791,210,407,117
  5. Step 5: Solve for x
    x = 7,609,791,210,407,117/126,399,200.40
  6. Step 6: Final answer
    x = 60,204,425.24

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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.