Home / 71,416,013.76-98,555,178.81-40,061,013.18

Finding the Fourth Proportional to 71,416,013.76, 98,555,178.81 and 40,061,013.18

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Solution

The fourth proportional to 71,416,013.76, 98,555,178.81 and 40,061,013.18 is: 55,284,803.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,416,013.76 : 98,555,178.81 = 40,061,013.18 : x
  2. Step 2: Convert to fraction form
    71,416,013.76/98,555,178.81 = 40,061,013.18/x
  3. Step 3: Cross multiply
    71,416,013.76x = 98,555,178.81 × 40,061,013.18
  4. Step 4: Simplify right side
    71,416,013.76x = 3,948,220,316,771,890.50
  5. Step 5: Solve for x
    x = 3,948,220,316,771,890.50/71,416,013.76
  6. Step 6: Final answer
    x = 55,284,803.91

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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.