Home / 21,228,169.23-29,285,653.01-13,489,059.65

Finding the Fourth Proportional to 21,228,169.23, 29,285,653.01 and 13,489,059.65

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Solution

The fourth proportional to 21,228,169.23, 29,285,653.01 and 13,489,059.65 is: 18,609,043.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,228,169.23 : 29,285,653.01 = 13,489,059.65 : x
  2. Step 2: Convert to fraction form
    21,228,169.23/29,285,653.01 = 13,489,059.65/x
  3. Step 3: Cross multiply
    21,228,169.23x = 29,285,653.01 × 13,489,059.65
  4. Step 4: Simplify right side
    21,228,169.23x = 395,035,920,127,218.44
  5. Step 5: Solve for x
    x = 395,035,920,127,218.44/21,228,169.23
  6. Step 6: Final answer
    x = 18,609,043.29

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1.5x scale

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.