Home / 13,358,969.38-18,423,985.20-10,268,978.92

Finding the Fourth Proportional to 13,358,969.38, 18,423,985.20 and 10,268,978.92

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Solution

The fourth proportional to 13,358,969.38, 18,423,985.20 and 10,268,978.92 is: 14,162,433.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358,969.38 : 18,423,985.20 = 10,268,978.92 : x
  2. Step 2: Convert to fraction form
    13,358,969.38/18,423,985.20 = 10,268,978.92/x
  3. Step 3: Cross multiply
    13,358,969.38x = 18,423,985.20 × 10,268,978.92
  4. Step 4: Simplify right side
    13,358,969.38x = 189,195,515,641,191.97
  5. Step 5: Solve for x
    x = 189,195,515,641,191.97/13,358,969.38
  6. Step 6: Final answer
    x = 14,162,433.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.