Home / 19,492,421.40-29,207,139.30-12,291,067.80

Finding the Fourth Proportional to 19,492,421.40, 29,207,139.30 and 12,291,067.80

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Solution

The fourth proportional to 19,492,421.40, 29,207,139.30 and 12,291,067.80 is: 18,416,743.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,492,421.40 : 29,207,139.30 = 12,291,067.80 : x
  2. Step 2: Convert to fraction form
    19,492,421.40/29,207,139.30 = 12,291,067.80/x
  3. Step 3: Cross multiply
    19,492,421.40x = 29,207,139.30 × 12,291,067.80
  4. Step 4: Simplify right side
    19,492,421.40x = 358,986,929,380,344.56
  5. Step 5: Solve for x
    x = 358,986,929,380,344.56/19,492,421.40
  6. Step 6: Final answer
    x = 18,416,743.72

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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.