Home / 71,342,329-98,449,119.30-40,402,719.76

Finding the Fourth Proportional to 71,342,329, 98,449,119.30 and 40,402,719.76

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Solution

The fourth proportional to 71,342,329, 98,449,119.30 and 40,402,719.76 is: 55,753,887.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,342,329 : 98,449,119.30 = 40,402,719.76 : x
  2. Step 2: Convert to fraction form
    71,342,329/98,449,119.30 = 40,402,719.76/x
  3. Step 3: Cross multiply
    71,342,329x = 98,449,119.30 × 40,402,719.76
  4. Step 4: Simplify right side
    71,342,329x = 3,977,612,177,696,707
  5. Step 5: Solve for x
    x = 3,977,612,177,696,707/71,342,329
  6. Step 6: Final answer
    x = 55,753,887.40

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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.