Home / 71,110,651.28-98,140,662.72-40,172,813.46

Finding the Fourth Proportional to 71,110,651.28, 98,140,662.72 and 40,172,813.46

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Solution

The fourth proportional to 71,110,651.28, 98,140,662.72 and 40,172,813.46 is: 55,442,981.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,110,651.28 : 98,140,662.72 = 40,172,813.46 : x
  2. Step 2: Convert to fraction form
    71,110,651.28/98,140,662.72 = 40,172,813.46/x
  3. Step 3: Cross multiply
    71,110,651.28x = 98,140,662.72 × 40,172,813.46
  4. Step 4: Simplify right side
    71,110,651.28x = 3,942,586,536,291,336.50
  5. Step 5: Solve for x
    x = 3,942,586,536,291,336.50/71,110,651.28
  6. Step 6: Final answer
    x = 55,442,981.69

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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.