Home / 20,409,763.65-28,165,475.37-11,242,406.40

Finding the Fourth Proportional to 20,409,763.65, 28,165,475.37 and 11,242,406.40

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Solution

The fourth proportional to 20,409,763.65, 28,165,475.37 and 11,242,406.40 is: 15,514,521.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409,763.65 : 28,165,475.37 = 11,242,406.40 : x
  2. Step 2: Convert to fraction form
    20,409,763.65/28,165,475.37 = 11,242,406.40/x
  3. Step 3: Cross multiply
    20,409,763.65x = 28,165,475.37 × 11,242,406.40
  4. Step 4: Simplify right side
    20,409,763.65x = 316,647,720,558,730.38
  5. Step 5: Solve for x
    x = 316,647,720,558,730.38/20,409,763.65
  6. Step 6: Final answer
    x = 15,514,521.68

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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.