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Finding the Fourth Proportional to 18,452,435.10, 27,678,652.65 and 8,865,501.90

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Solution

The fourth proportional to 18,452,435.10, 27,678,652.65 and 8,865,501.90 is: 13,298,252.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,452,435.10 : 27,678,652.65 = 8,865,501.90 : x
  2. Step 2: Convert to fraction form
    18,452,435.10/27,678,652.65 = 8,865,501.90/x
  3. Step 3: Cross multiply
    18,452,435.10x = 27,678,652.65 × 8,865,501.90
  4. Step 4: Simplify right side
    18,452,435.10x = 245,385,147,658,015.03
  5. Step 5: Solve for x
    x = 245,385,147,658,015.03/18,452,435.10
  6. Step 6: Final answer
    x = 13,298,252.85

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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.