Home / 28,071,728.03-38,736,822.61-15,849,791.39

Finding the Fourth Proportional to 28,071,728.03, 38,736,822.61 and 15,849,791.39

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Solution

The fourth proportional to 28,071,728.03, 38,736,822.61 and 15,849,791.39 is: 21,871,491.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071,728.03 : 38,736,822.61 = 15,849,791.39 : x
  2. Step 2: Convert to fraction form
    28,071,728.03/38,736,822.61 = 15,849,791.39/x
  3. Step 3: Cross multiply
    28,071,728.03x = 38,736,822.61 × 15,849,791.39
  4. Step 4: Simplify right side
    28,071,728.03x = 613,970,557,596,589.62
  5. Step 5: Solve for x
    x = 613,970,557,596,589.62/28,071,728.03
  6. Step 6: Final answer
    x = 21,871,491.38

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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.