Home / 20,778,727.04-28,674,597.12-11,611,370.72

Finding the Fourth Proportional to 20,778,727.04, 28,674,597.12 and 11,611,370.72

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Solution

The fourth proportional to 20,778,727.04, 28,674,597.12 and 11,611,370.72 is: 16,023,665.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,778,727.04 : 28,674,597.12 = 11,611,370.72 : x
  2. Step 2: Convert to fraction form
    20,778,727.04/28,674,597.12 = 11,611,370.72/x
  3. Step 3: Cross multiply
    20,778,727.04x = 28,674,597.12 × 11,611,370.72
  4. Step 4: Simplify right side
    20,778,727.04x = 332,951,377,406,964.38
  5. Step 5: Solve for x
    x = 332,951,377,406,964.38/20,778,727.04
  6. Step 6: Final answer
    x = 16,023,665.78

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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.