Home / 71,735,648.20-98,987,019.52-40,367,638.44

Finding the Fourth Proportional to 71,735,648.20, 98,987,019.52 and 40,367,638.44

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Solution

The fourth proportional to 71,735,648.20, 98,987,019.52 and 40,367,638.44 is: 55,702,740.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,735,648.20 : 98,987,019.52 = 40,367,638.44 : x
  2. Step 2: Convert to fraction form
    71,735,648.20/98,987,019.52 = 40,367,638.44/x
  3. Step 3: Cross multiply
    71,735,648.20x = 98,987,019.52 × 40,367,638.44
  4. Step 4: Simplify right side
    71,735,648.20x = 3,995,872,214,236,582
  5. Step 5: Solve for x
    x = 3,995,872,214,236,582/71,735,648.20
  6. Step 6: Final answer
    x = 55,702,740.75

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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.