Home / 20,374,345.76-28,116,799.99-11,082,132

Finding the Fourth Proportional to 20,374,345.76, 28,116,799.99 and 11,082,132

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Solution

The fourth proportional to 20,374,345.76, 28,116,799.99 and 11,082,132 is: 15,293,452.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374,345.76 : 28,116,799.99 = 11,082,132 : x
  2. Step 2: Convert to fraction form
    20,374,345.76/28,116,799.99 = 11,082,132/x
  3. Step 3: Cross multiply
    20,374,345.76x = 28,116,799.99 × 11,082,132
  4. Step 4: Simplify right side
    20,374,345.76x = 311,594,088,879,073.38
  5. Step 5: Solve for x
    x = 311,594,088,879,073.38/20,374,345.76
  6. Step 6: Final answer
    x = 15,293,452.49

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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.