Home / 126,067,748.40-189,101,622.60-77,387,752.80

Finding the Fourth Proportional to 126,067,748.40, 189,101,622.60 and 77,387,752.80

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Solution

The fourth proportional to 126,067,748.40, 189,101,622.60 and 77,387,752.80 is: 116,081,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,067,748.40 : 189,101,622.60 = 77,387,752.80 : x
  2. Step 2: Convert to fraction form
    126,067,748.40/189,101,622.60 = 77,387,752.80/x
  3. Step 3: Cross multiply
    126,067,748.40x = 189,101,622.60 × 77,387,752.80
  4. Step 4: Simplify right side
    126,067,748.40x = 14,634,149,623,847,692
  5. Step 5: Solve for x
    x = 14,634,149,623,847,692/126,067,748.40
  6. Step 6: Final answer
    x = 116,081,629.20

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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.