Home / 19,668,682.20-29,503,023.30-12,015,931.80

Finding the Fourth Proportional to 19,668,682.20, 29,503,023.30 and 12,015,931.80

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Solution

The fourth proportional to 19,668,682.20, 29,503,023.30 and 12,015,931.80 is: 18,023,897.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668,682.20 : 29,503,023.30 = 12,015,931.80 : x
  2. Step 2: Convert to fraction form
    19,668,682.20/29,503,023.30 = 12,015,931.80/x
  3. Step 3: Cross multiply
    19,668,682.20x = 29,503,023.30 × 12,015,931.80
  4. Step 4: Simplify right side
    19,668,682.20x = 354,506,315,866,611
  5. Step 5: Solve for x
    x = 354,506,315,866,611/19,668,682.20
  6. Step 6: Final answer
    x = 18,023,897.70

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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.