Home / 28,904,418.28-39,885,927.78-15,849,585.64

Finding the Fourth Proportional to 28,904,418.28, 39,885,927.78 and 15,849,585.64

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Solution

The fourth proportional to 28,904,418.28, 39,885,927.78 and 15,849,585.64 is: 21,871,238.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,904,418.28 : 39,885,927.78 = 15,849,585.64 : x
  2. Step 2: Convert to fraction form
    28,904,418.28/39,885,927.78 = 15,849,585.64/x
  3. Step 3: Cross multiply
    28,904,418.28x = 39,885,927.78 × 15,849,585.64
  4. Step 4: Simplify right side
    28,904,418.28x = 632,175,428,179,965.12
  5. Step 5: Solve for x
    x = 632,175,428,179,965.12/28,904,418.28
  6. Step 6: Final answer
    x = 21,871,238.58

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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.