Home / 28,469,620.10-42,704,430.15-13,116,880.10

Finding the Fourth Proportional to 28,469,620.10, 42,704,430.15 and 13,116,880.10

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Solution

The fourth proportional to 28,469,620.10, 42,704,430.15 and 13,116,880.10 is: 19,675,320.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,469,620.10 : 42,704,430.15 = 13,116,880.10 : x
  2. Step 2: Convert to fraction form
    28,469,620.10/42,704,430.15 = 13,116,880.10/x
  3. Step 3: Cross multiply
    28,469,620.10x = 42,704,430.15 × 13,116,880.10
  4. Step 4: Simplify right side
    28,469,620.10x = 560,148,890,016,375
  5. Step 5: Solve for x
    x = 560,148,890,016,375/28,469,620.10
  6. Step 6: Final answer
    x = 19,675,320.15

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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.