Home / 13,459,265.10-20,188,897.65-12,555,815.40

Finding the Fourth Proportional to 13,459,265.10, 20,188,897.65 and 12,555,815.40

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Solution

The fourth proportional to 13,459,265.10, 20,188,897.65 and 12,555,815.40 is: 18,833,723.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459,265.10 : 20,188,897.65 = 12,555,815.40 : x
  2. Step 2: Convert to fraction form
    13,459,265.10/20,188,897.65 = 12,555,815.40/x
  3. Step 3: Cross multiply
    13,459,265.10x = 20,188,897.65 × 12,555,815.40
  4. Step 4: Simplify right side
    13,459,265.10x = 253,488,072,022,893.81
  5. Step 5: Solve for x
    x = 253,488,072,022,893.81/13,459,265.10
  6. Step 6: Final answer
    x = 18,833,723.10

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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.