Home / 18,770,113.76-28,165,821.48-10,134,099.20

Finding the Fourth Proportional to 18,770,113.76, 28,165,821.48 and 10,134,099.20

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Solution

The fourth proportional to 18,770,113.76, 28,165,821.48 and 10,134,099.20 is: 15,206,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770,113.76 : 28,165,821.48 = 10,134,099.20 : x
  2. Step 2: Convert to fraction form
    18,770,113.76/28,165,821.48 = 10,134,099.20/x
  3. Step 3: Cross multiply
    18,770,113.76x = 28,165,821.48 × 10,134,099.20
  4. Step 4: Simplify right side
    18,770,113.76x = 285,435,228,927,810.81
  5. Step 5: Solve for x
    x = 285,435,228,927,810.81/18,770,113.76
  6. Step 6: Final answer
    x = 15,206,899.25

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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.