Home / 71,342,843.28-98,449,828.20-40,403,235.60

Finding the Fourth Proportional to 71,342,843.28, 98,449,828.20 and 40,403,235.60

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Solution

The fourth proportional to 71,342,843.28, 98,449,828.20 and 40,403,235.60 is: 55,754,598.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,342,843.28 : 98,449,828.20 = 40,403,235.60 : x
  2. Step 2: Convert to fraction form
    71,342,843.28/98,449,828.20 = 40,403,235.60/x
  3. Step 3: Cross multiply
    71,342,843.28x = 98,449,828.20 × 40,403,235.60
  4. Step 4: Simplify right side
    71,342,843.28x = 3,977,691,603,544,124
  5. Step 5: Solve for x
    x = 3,977,691,603,544,124/71,342,843.28
  6. Step 6: Final answer
    x = 55,754,598.79

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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.