Home / 126,187,331.40-189,267,000.30-103,428,534.60

Finding the Fourth Proportional to 126,187,331.40, 189,267,000.30 and 103,428,534.60

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Solution

The fourth proportional to 126,187,331.40, 189,267,000.30 and 103,428,534.60 is: 155,131,329.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,187,331.40 : 189,267,000.30 = 103,428,534.60 : x
  2. Step 2: Convert to fraction form
    126,187,331.40/189,267,000.30 = 103,428,534.60/x
  3. Step 3: Cross multiply
    126,187,331.40x = 189,267,000.30 × 103,428,534.60
  4. Step 4: Simplify right side
    126,187,331.40x = 19,575,608,489,166,760
  5. Step 5: Solve for x
    x = 19,575,608,489,166,760/126,187,331.40
  6. Step 6: Final answer
    x = 155,131,329.52

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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.