Home / 28,071,757.72-38,736,863.58-15,849,821.08

Finding the Fourth Proportional to 28,071,757.72, 38,736,863.58 and 15,849,821.08

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Solution

The fourth proportional to 28,071,757.72, 38,736,863.58 and 15,849,821.08 is: 21,871,532.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071,757.72 : 38,736,863.58 = 15,849,821.08 : x
  2. Step 2: Convert to fraction form
    28,071,757.72/38,736,863.58 = 15,849,821.08/x
  3. Step 3: Cross multiply
    28,071,757.72x = 38,736,863.58 × 15,849,821.08
  4. Step 4: Simplify right side
    28,071,757.72x = 613,972,356,943,368.25
  5. Step 5: Solve for x
    x = 613,972,356,943,368.25/28,071,757.72
  6. Step 6: Final answer
    x = 21,871,532.34

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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.