Home / 15,926,934.25-21,978,536.19-9,402,665.36

Finding the Fourth Proportional to 15,926,934.25, 21,978,536.19 and 9,402,665.36

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Solution

The fourth proportional to 15,926,934.25, 21,978,536.19 and 9,402,665.36 is: 12,975,304.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,926,934.25 : 21,978,536.19 = 9,402,665.36 : x
  2. Step 2: Convert to fraction form
    15,926,934.25/21,978,536.19 = 9,402,665.36/x
  3. Step 3: Cross multiply
    15,926,934.25x = 21,978,536.19 × 9,402,665.36
  4. Step 4: Simplify right side
    15,926,934.25x = 206,656,820,897,219.38
  5. Step 5: Solve for x
    x = 206,656,820,897,219.38/15,926,934.25
  6. Step 6: Final answer
    x = 12,975,304.46

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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.