Home / 126,489,631.20-189,451,011.60-65,834,498.40

Finding the Fourth Proportional to 126,489,631.20, 189,451,011.60 and 65,834,498.40

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Solution

The fourth proportional to 126,489,631.20, 189,451,011.60 and 65,834,498.40 is: 98,604,227.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,489,631.20 : 189,451,011.60 = 65,834,498.40 : x
  2. Step 2: Convert to fraction form
    126,489,631.20/189,451,011.60 = 65,834,498.40/x
  3. Step 3: Cross multiply
    126,489,631.20x = 189,451,011.60 × 65,834,498.40
  4. Step 4: Simplify right side
    126,489,631.20x = 12,472,412,320,058,580
  5. Step 5: Solve for x
    x = 12,472,412,320,058,580/126,489,631.20
  6. Step 6: Final answer
    x = 98,604,227.10

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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.