Home / 20,722,555.68-28,596,625.86-11,429,926.18

Finding the Fourth Proportional to 20,722,555.68, 28,596,625.86 and 11,429,926.18

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Solution

The fourth proportional to 20,722,555.68, 28,596,625.86 and 11,429,926.18 is: 15,773,021.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722,555.68 : 28,596,625.86 = 11,429,926.18 : x
  2. Step 2: Convert to fraction form
    20,722,555.68/28,596,625.86 = 11,429,926.18/x
  3. Step 3: Cross multiply
    20,722,555.68x = 28,596,625.86 × 11,429,926.18
  4. Step 4: Simplify right side
    20,722,555.68x = 326,857,322,433,895.88
  5. Step 5: Solve for x
    x = 326,857,322,433,895.88/20,722,555.68
  6. Step 6: Final answer
    x = 15,773,021.80

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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.