Home / 18,216,863.40-25,139,210.42-9,956,920.90

Finding the Fourth Proportional to 18,216,863.40, 25,139,210.42 and 9,956,920.90

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Solution

The fourth proportional to 18,216,863.40, 25,139,210.42 and 9,956,920.90 is: 13,740,517.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216,863.40 : 25,139,210.42 = 9,956,920.90 : x
  2. Step 2: Convert to fraction form
    18,216,863.40/25,139,210.42 = 9,956,920.90/x
  3. Step 3: Cross multiply
    18,216,863.40x = 25,139,210.42 × 9,956,920.90
  4. Step 4: Simplify right side
    18,216,863.40x = 250,309,129,649,576.03
  5. Step 5: Solve for x
    x = 250,309,129,649,576.03/18,216,863.40
  6. Step 6: Final answer
    x = 13,740,517.46

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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.