Home / 21,449,964.16-29,600,328.20-12,158,390.80

Finding the Fourth Proportional to 21,449,964.16, 29,600,328.20 and 12,158,390.80

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Solution

The fourth proportional to 21,449,964.16, 29,600,328.20 and 12,158,390.80 is: 16,778,226.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,449,964.16 : 29,600,328.20 = 12,158,390.80 : x
  2. Step 2: Convert to fraction form
    21,449,964.16/29,600,328.20 = 12,158,390.80/x
  3. Step 3: Cross multiply
    21,449,964.16x = 29,600,328.20 × 12,158,390.80
  4. Step 4: Simplify right side
    21,449,964.16x = 359,892,358,063,860.56
  5. Step 5: Solve for x
    x = 359,892,358,063,860.56/21,449,964.16
  6. Step 6: Final answer
    x = 16,778,226.55

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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.