Home / 20,759,452.80-31,139,179.20-12,114,679.20

Finding the Fourth Proportional to 20,759,452.80, 31,139,179.20 and 12,114,679.20

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Solution

The fourth proportional to 20,759,452.80, 31,139,179.20 and 12,114,679.20 is: 18,172,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759,452.80 : 31,139,179.20 = 12,114,679.20 : x
  2. Step 2: Convert to fraction form
    20,759,452.80/31,139,179.20 = 12,114,679.20/x
  3. Step 3: Cross multiply
    20,759,452.80x = 31,139,179.20 × 12,114,679.20
  4. Step 4: Simplify right side
    20,759,452.80x = 377,241,166,559,312.62
  5. Step 5: Solve for x
    x = 377,241,166,559,312.62/20,759,452.80
  6. Step 6: Final answer
    x = 18,172,018.80

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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.