Home / 126,044,175.40-189,066,263.10-78,734,116.60

Finding the Fourth Proportional to 126,044,175.40, 189,066,263.10 and 78,734,116.60

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Solution

The fourth proportional to 126,044,175.40, 189,066,263.10 and 78,734,116.60 is: 118,101,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,044,175.40 : 189,066,263.10 = 78,734,116.60 : x
  2. Step 2: Convert to fraction form
    126,044,175.40/189,066,263.10 = 78,734,116.60/x
  3. Step 3: Cross multiply
    126,044,175.40x = 189,066,263.10 × 78,734,116.60
  4. Step 4: Simplify right side
    126,044,175.40x = 14,885,965,204,041,676
  5. Step 5: Solve for x
    x = 14,885,965,204,041,676/126,044,175.40
  6. Step 6: Final answer
    x = 118,101,174.90

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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.