Home / 18,900,806.39-28,368,110.31-9,685,065.86

Finding the Fourth Proportional to 18,900,806.39, 28,368,110.31 and 9,685,065.86

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Solution

The fourth proportional to 18,900,806.39, 28,368,110.31 and 9,685,065.86 is: 14,536,258.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900,806.39 : 28,368,110.31 = 9,685,065.86 : x
  2. Step 2: Convert to fraction form
    18,900,806.39/28,368,110.31 = 9,685,065.86/x
  3. Step 3: Cross multiply
    18,900,806.39x = 28,368,110.31 × 9,685,065.86
  4. Step 4: Simplify right side
    18,900,806.39x = 274,747,016,791,120.94
  5. Step 5: Solve for x
    x = 274,747,016,791,120.94/18,900,806.39
  6. Step 6: Final answer
    x = 14,536,258.99

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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.