Home / 13,427,116.20-20,158,236.18-7,972,169.58

Finding the Fourth Proportional to 13,427,116.20, 20,158,236.18 and 7,972,169.58

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Solution

The fourth proportional to 13,427,116.20, 20,158,236.18 and 7,972,169.58 is: 11,968,681.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427,116.20 : 20,158,236.18 = 7,972,169.58 : x
  2. Step 2: Convert to fraction form
    13,427,116.20/20,158,236.18 = 7,972,169.58/x
  3. Step 3: Cross multiply
    13,427,116.20x = 20,158,236.18 × 7,972,169.58
  4. Step 4: Simplify right side
    13,427,116.20x = 160,704,877,260,651.41
  5. Step 5: Solve for x
    x = 160,704,877,260,651.41/13,427,116.20
  6. Step 6: Final answer
    x = 11,968,681.50

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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.