Home / 18,795,139.70-28,192,709.55-13,055,576.90

Finding the Fourth Proportional to 18,795,139.70, 28,192,709.55 and 13,055,576.90

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Solution

The fourth proportional to 18,795,139.70, 28,192,709.55 and 13,055,576.90 is: 19,583,365.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795,139.70 : 28,192,709.55 = 13,055,576.90 : x
  2. Step 2: Convert to fraction form
    18,795,139.70/28,192,709.55 = 13,055,576.90/x
  3. Step 3: Cross multiply
    18,795,139.70x = 28,192,709.55 × 13,055,576.90
  4. Step 4: Simplify right side
    18,795,139.70x = 368,072,087,549,389.44
  5. Step 5: Solve for x
    x = 368,072,087,549,389.44/18,795,139.70
  6. Step 6: Final answer
    x = 19,583,365.35

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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.