Home / 20,012,778.42-27,620,596.34-12,671,292.80

Finding the Fourth Proportional to 20,012,778.42, 27,620,596.34 and 12,671,292.80

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Solution

The fourth proportional to 20,012,778.42, 27,620,596.34 and 12,671,292.80 is: 17,488,259.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012,778.42 : 27,620,596.34 = 12,671,292.80 : x
  2. Step 2: Convert to fraction form
    20,012,778.42/27,620,596.34 = 12,671,292.80/x
  3. Step 3: Cross multiply
    20,012,778.42x = 27,620,596.34 × 12,671,292.80
  4. Step 4: Simplify right side
    20,012,778.42x = 349,988,663,534,748.38
  5. Step 5: Solve for x
    x = 349,988,663,534,748.38/20,012,778.42
  6. Step 6: Final answer
    x = 17,488,259.56

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1.5x scale

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.