Home / 13,771,567.90-20,657,351.85-12,987,747.10

Finding the Fourth Proportional to 13,771,567.90, 20,657,351.85 and 12,987,747.10

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Solution

The fourth proportional to 13,771,567.90, 20,657,351.85 and 12,987,747.10 is: 19,481,620.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771,567.90 : 20,657,351.85 = 12,987,747.10 : x
  2. Step 2: Convert to fraction form
    13,771,567.90/20,657,351.85 = 12,987,747.10/x
  3. Step 3: Cross multiply
    13,771,567.90x = 20,657,351.85 × 12,987,747.10
  4. Step 4: Simplify right side
    13,771,567.90x = 268,292,461,583,517.16
  5. Step 5: Solve for x
    x = 268,292,461,583,517.16/13,771,567.90
  6. Step 6: Final answer
    x = 19,481,620.65

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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.