Home / 20,862,282.20-31,293,423.30-13,209,531.80

Finding the Fourth Proportional to 20,862,282.20, 31,293,423.30 and 13,209,531.80

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Solution

The fourth proportional to 20,862,282.20, 31,293,423.30 and 13,209,531.80 is: 19,814,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862,282.20 : 31,293,423.30 = 13,209,531.80 : x
  2. Step 2: Convert to fraction form
    20,862,282.20/31,293,423.30 = 13,209,531.80/x
  3. Step 3: Cross multiply
    20,862,282.20x = 31,293,423.30 × 13,209,531.80
  4. Step 4: Simplify right side
    20,862,282.20x = 413,371,470,212,211
  5. Step 5: Solve for x
    x = 413,371,470,212,211/20,862,282.20
  6. Step 6: Final answer
    x = 19,814,297.70

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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.