Home / 20,409,762.40-28,165,473.64-11,242,405.14

Finding the Fourth Proportional to 20,409,762.40, 28,165,473.64 and 11,242,405.14

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Solution

The fourth proportional to 20,409,762.40, 28,165,473.64 and 11,242,405.14 is: 15,514,519.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409,762.40 : 28,165,473.64 = 11,242,405.14 : x
  2. Step 2: Convert to fraction form
    20,409,762.40/28,165,473.64 = 11,242,405.14/x
  3. Step 3: Cross multiply
    20,409,762.40x = 28,165,473.64 × 11,242,405.14
  4. Step 4: Simplify right side
    20,409,762.40x = 316,647,665,620,870.56
  5. Step 5: Solve for x
    x = 316,647,665,620,870.56/20,409,762.40
  6. Step 6: Final answer
    x = 15,514,519.93

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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.