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Finding the Fourth Proportional to 17,347,801.20, 26,021,701.80 and 8,389,849.20

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Solution

The fourth proportional to 17,347,801.20, 26,021,701.80 and 8,389,849.20 is: 12,584,773.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,347,801.20 : 26,021,701.80 = 8,389,849.20 : x
  2. Step 2: Convert to fraction form
    17,347,801.20/26,021,701.80 = 8,389,849.20/x
  3. Step 3: Cross multiply
    17,347,801.20x = 26,021,701.80 × 8,389,849.20
  4. Step 4: Simplify right side
    17,347,801.20x = 218,318,154,029,368.53
  5. Step 5: Solve for x
    x = 218,318,154,029,368.53/17,347,801.20
  6. Step 6: Final answer
    x = 12,584,773.80

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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.