Home / 20,315,877.96-28,036,719.96-11,148,848.76

Finding the Fourth Proportional to 20,315,877.96, 28,036,719.96 and 11,148,848.76

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Solution

The fourth proportional to 20,315,877.96, 28,036,719.96 and 11,148,848.76 is: 15,385,854.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,315,877.96 : 28,036,719.96 = 11,148,848.76 : x
  2. Step 2: Convert to fraction form
    20,315,877.96/28,036,719.96 = 11,148,848.76/x
  3. Step 3: Cross multiply
    20,315,877.96x = 28,036,719.96 × 11,148,848.76
  4. Step 4: Simplify right side
    20,315,877.96x = 312,577,150,560,513.25
  5. Step 5: Solve for x
    x = 312,577,150,560,513.25/20,315,877.96
  6. Step 6: Final answer
    x = 15,385,854.91

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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.