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Finding the Fourth Proportional to 10,368,009.85, 15,552,014.78 and 9,375,986.65

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Solution

The fourth proportional to 10,368,009.85, 15,552,014.78 and 9,375,986.65 is: 14,063,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368,009.85 : 15,552,014.78 = 9,375,986.65 : x
  2. Step 2: Convert to fraction form
    10,368,009.85/15,552,014.78 = 9,375,986.65/x
  3. Step 3: Cross multiply
    10,368,009.85x = 15,552,014.78 × 9,375,986.65
  4. Step 4: Simplify right side
    10,368,009.85x = 145,815,482,911,002.75
  5. Step 5: Solve for x
    x = 145,815,482,911,002.75/10,368,009.85
  6. Step 6: Final answer
    x = 14,063,979.98

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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.