Home / 13,772,142.90-20,658,214.35-12,177,819.90

Finding the Fourth Proportional to 13,772,142.90, 20,658,214.35 and 12,177,819.90

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Solution

The fourth proportional to 13,772,142.90, 20,658,214.35 and 12,177,819.90 is: 18,266,729.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772,142.90 : 20,658,214.35 = 12,177,819.90 : x
  2. Step 2: Convert to fraction form
    13,772,142.90/20,658,214.35 = 12,177,819.90/x
  3. Step 3: Cross multiply
    13,772,142.90x = 20,658,214.35 × 12,177,819.90
  4. Step 4: Simplify right side
    13,772,142.90x = 251,572,013,809,895.59
  5. Step 5: Solve for x
    x = 251,572,013,809,895.59/13,772,142.90
  6. Step 6: Final answer
    x = 18,266,729.85

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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.