Home / 20,802,567.38-28,708,389.05-11,509,986.29

Finding the Fourth Proportional to 20,802,567.38, 28,708,389.05 and 11,509,986.29

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Solution

The fourth proportional to 20,802,567.38, 28,708,389.05 and 11,509,986.29 is: 15,884,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802,567.38 : 28,708,389.05 = 11,509,986.29 : x
  2. Step 2: Convert to fraction form
    20,802,567.38/28,708,389.05 = 11,509,986.29/x
  3. Step 3: Cross multiply
    20,802,567.38x = 28,708,389.05 × 11,509,986.29
  4. Step 4: Simplify right side
    20,802,567.38x = 330,433,164,172,394.25
  5. Step 5: Solve for x
    x = 330,433,164,172,394.25/20,802,567.38
  6. Step 6: Final answer
    x = 15,884,249.20

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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.