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Finding the Fourth Proportional to 13,893,494.40, 20,840,241.60 and 9,358,531.20

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Solution

The fourth proportional to 13,893,494.40, 20,840,241.60 and 9,358,531.20 is: 14,037,796.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,893,494.40 : 20,840,241.60 = 9,358,531.20 : x
  2. Step 2: Convert to fraction form
    13,893,494.40/20,840,241.60 = 9,358,531.20/x
  3. Step 3: Cross multiply
    13,893,494.40x = 20,840,241.60 × 9,358,531.20
  4. Step 4: Simplify right side
    13,893,494.40x = 195,034,051,229,137.91
  5. Step 5: Solve for x
    x = 195,034,051,229,137.91/13,893,494.40
  6. Step 6: Final answer
    x = 14,037,796.80

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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.