Home / 20,334,167.64-28,054,136.16-12,996,295.92

Finding the Fourth Proportional to 20,334,167.64, 28,054,136.16 and 12,996,295.92

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Solution

The fourth proportional to 20,334,167.64, 28,054,136.16 and 12,996,295.92 is: 17,930,404.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334,167.64 : 28,054,136.16 = 12,996,295.92 : x
  2. Step 2: Convert to fraction form
    20,334,167.64/28,054,136.16 = 12,996,295.92/x
  3. Step 3: Cross multiply
    20,334,167.64x = 28,054,136.16 × 12,996,295.92
  4. Step 4: Simplify right side
    20,334,167.64x = 364,599,855,315,332.44
  5. Step 5: Solve for x
    x = 364,599,855,315,332.44/20,334,167.64
  6. Step 6: Final answer
    x = 17,930,404.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.