Home / 91,448,981.20-126,199,719.03-49,633,047.15

Finding the Fourth Proportional to 91,448,981.20, 126,199,719.03 and 49,633,047.15

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Solution

The fourth proportional to 91,448,981.20, 126,199,719.03 and 49,633,047.15 is: 68,493,672.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,448,981.20 : 126,199,719.03 = 49,633,047.15 : x
  2. Step 2: Convert to fraction form
    91,448,981.20/126,199,719.03 = 49,633,047.15/x
  3. Step 3: Cross multiply
    91,448,981.20x = 126,199,719.03 × 49,633,047.15
  4. Step 4: Simplify right side
    91,448,981.20x = 6,263,676,604,932,742
  5. Step 5: Solve for x
    x = 6,263,676,604,932,742/91,448,981.20
  6. Step 6: Final answer
    x = 68,493,672.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.