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Finding the Fourth Proportional to 10,368,009.10, 15,552,013.65 and 9,375,985.90

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Solution

The fourth proportional to 10,368,009.10, 15,552,013.65 and 9,375,985.90 is: 14,063,978.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368,009.10 : 15,552,013.65 = 9,375,985.90 : x
  2. Step 2: Convert to fraction form
    10,368,009.10/15,552,013.65 = 9,375,985.90/x
  3. Step 3: Cross multiply
    10,368,009.10x = 15,552,013.65 × 9,375,985.90
  4. Step 4: Simplify right side
    10,368,009.10x = 145,815,460,699,007.53
  5. Step 5: Solve for x
    x = 145,815,460,699,007.53/10,368,009.10
  6. Step 6: Final answer
    x = 14,063,978.85

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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.