Home / 126,019,808.80-189,029,713.20-45,230,279.20

Finding the Fourth Proportional to 126,019,808.80, 189,029,713.20 and 45,230,279.20

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Solution

The fourth proportional to 126,019,808.80, 189,029,713.20 and 45,230,279.20 is: 67,845,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,019,808.80 : 189,029,713.20 = 45,230,279.20 : x
  2. Step 2: Convert to fraction form
    126,019,808.80/189,029,713.20 = 45,230,279.20/x
  3. Step 3: Cross multiply
    126,019,808.80x = 189,029,713.20 × 45,230,279.20
  4. Step 4: Simplify right side
    126,019,808.80x = 8,549,866,705,131,925
  5. Step 5: Solve for x
    x = 8,549,866,705,131,925/126,019,808.80
  6. Step 6: Final answer
    x = 67,845,418.80

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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.