Home / 20,873,889.80-28,806,176.58-11,706,335.72

Finding the Fourth Proportional to 20,873,889.80, 28,806,176.58 and 11,706,335.72

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Solution

The fourth proportional to 20,873,889.80, 28,806,176.58 and 11,706,335.72 is: 16,154,860.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873,889.80 : 28,806,176.58 = 11,706,335.72 : x
  2. Step 2: Convert to fraction form
    20,873,889.80/28,806,176.58 = 11,706,335.72/x
  3. Step 3: Cross multiply
    20,873,889.80x = 28,806,176.58 × 11,706,335.72
  4. Step 4: Simplify right side
    20,873,889.80x = 337,214,773,855,081.44
  5. Step 5: Solve for x
    x = 337,214,773,855,081.44/20,873,889.80
  6. Step 6: Final answer
    x = 16,154,860.31

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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.