Home / 74,701,099.20-111,989,440.80-31,603,396.80

Finding the Fourth Proportional to 74,701,099.20, 111,989,440.80 and 31,603,396.80

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Solution

The fourth proportional to 74,701,099.20, 111,989,440.80 and 31,603,396.80 is: 47,378,777.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,701,099.20 : 111,989,440.80 = 31,603,396.80 : x
  2. Step 2: Convert to fraction form
    74,701,099.20/111,989,440.80 = 31,603,396.80/x
  3. Step 3: Cross multiply
    74,701,099.20x = 111,989,440.80 × 31,603,396.80
  4. Step 4: Simplify right side
    74,701,099.20x = 3,539,246,735,012,509.50
  5. Step 5: Solve for x
    x = 3,539,246,735,012,509.50/74,701,099.20
  6. Step 6: Final answer
    x = 47,378,777.19

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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.