Home / 13,771,446.40-20,657,169.60-12,987,625.60

Finding the Fourth Proportional to 13,771,446.40, 20,657,169.60 and 12,987,625.60

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Solution

The fourth proportional to 13,771,446.40, 20,657,169.60 and 12,987,625.60 is: 19,481,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771,446.40 : 20,657,169.60 = 12,987,625.60 : x
  2. Step 2: Convert to fraction form
    13,771,446.40/20,657,169.60 = 12,987,625.60/x
  3. Step 3: Cross multiply
    13,771,446.40x = 20,657,169.60 × 12,987,625.60
  4. Step 4: Simplify right side
    13,771,446.40x = 268,287,584,720,501.78
  5. Step 5: Solve for x
    x = 268,287,584,720,501.78/13,771,446.40
  6. Step 6: Final answer
    x = 19,481,438.40

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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.