Home / 71,109,814.74-98,139,508.20-40,171,976.88

Finding the Fourth Proportional to 71,109,814.74, 98,139,508.20 and 40,171,976.88

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Solution

The fourth proportional to 71,109,814.74, 98,139,508.20 and 40,171,976.88 is: 55,441,827.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,109,814.74 : 98,139,508.20 = 40,171,976.88 : x
  2. Step 2: Convert to fraction form
    71,109,814.74/98,139,508.20 = 40,171,976.88/x
  3. Step 3: Cross multiply
    71,109,814.74x = 98,139,508.20 × 40,171,976.88
  4. Step 4: Simplify right side
    71,109,814.74x = 3,942,458,054,424,971
  5. Step 5: Solve for x
    x = 3,942,458,054,424,971/71,109,814.74
  6. Step 6: Final answer
    x = 55,441,827.11

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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.