Home / 74,701,102.20-111,989,445.30-31,603,399.80

Finding the Fourth Proportional to 74,701,102.20, 111,989,445.30 and 31,603,399.80

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Solution

The fourth proportional to 74,701,102.20, 111,989,445.30 and 31,603,399.80 is: 47,378,781.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,701,102.20 : 111,989,445.30 = 31,603,399.80 : x
  2. Step 2: Convert to fraction form
    74,701,102.20/111,989,445.30 = 31,603,399.80/x
  3. Step 3: Cross multiply
    74,701,102.20x = 111,989,445.30 × 31,603,399.80
  4. Step 4: Simplify right side
    74,701,102.20x = 3,539,247,213,196,131
  5. Step 5: Solve for x
    x = 3,539,247,213,196,131/74,701,102.20
  6. Step 6: Final answer
    x = 47,378,781.69

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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.