Home / 71,168,822.40-106,540,657.20-42,400,149.60

Finding the Fourth Proportional to 71,168,822.40, 106,540,657.20 and 42,400,149.60

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Solution

The fourth proportional to 71,168,822.40, 106,540,657.20 and 42,400,149.60 is: 63,473,578.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,168,822.40 : 106,540,657.20 = 42,400,149.60 : x
  2. Step 2: Convert to fraction form
    71,168,822.40/106,540,657.20 = 42,400,149.60/x
  3. Step 3: Cross multiply
    71,168,822.40x = 106,540,657.20 × 42,400,149.60
  4. Step 4: Simplify right side
    71,168,822.40x = 4,517,339,803,762,317
  5. Step 5: Solve for x
    x = 4,517,339,803,762,317/71,168,822.40
  6. Step 6: Final answer
    x = 63,473,578.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.