Home / 126,280,951.80-189,421,427.70-71,861,393.40

Finding the Fourth Proportional to 126,280,951.80, 189,421,427.70 and 71,861,393.40

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Solution

The fourth proportional to 126,280,951.80, 189,421,427.70 and 71,861,393.40 is: 107,792,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,280,951.80 : 189,421,427.70 = 71,861,393.40 : x
  2. Step 2: Convert to fraction form
    126,280,951.80/189,421,427.70 = 71,861,393.40/x
  3. Step 3: Cross multiply
    126,280,951.80x = 189,421,427.70 × 71,861,393.40
  4. Step 4: Simplify right side
    126,280,951.80x = 13,612,087,734,339,358
  5. Step 5: Solve for x
    x = 13,612,087,734,339,358/126,280,951.80
  6. Step 6: Final answer
    x = 107,792,090.10

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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.