Home / 20,409,763.84-28,165,475.62-11,242,406.59

Finding the Fourth Proportional to 20,409,763.84, 28,165,475.62 and 11,242,406.59

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Solution

The fourth proportional to 20,409,763.84, 28,165,475.62 and 11,242,406.59 is: 15,514,521.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409,763.84 : 28,165,475.62 = 11,242,406.59 : x
  2. Step 2: Convert to fraction form
    20,409,763.84/28,165,475.62 = 11,242,406.59/x
  3. Step 3: Cross multiply
    20,409,763.84x = 28,165,475.62 × 11,242,406.59
  4. Step 4: Simplify right side
    20,409,763.84x = 316,647,728,720,772.31
  5. Step 5: Solve for x
    x = 316,647,728,720,772.31/20,409,763.84
  6. Step 6: Final answer
    x = 15,514,521.93

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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.