Home / 28,680,625.20-39,578,751.48-15,627,996.84

Finding the Fourth Proportional to 28,680,625.20, 39,578,751.48 and 15,627,996.84

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Solution

The fourth proportional to 28,680,625.20, 39,578,751.48 and 15,627,996.84 is: 21,566,357.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,680,625.20 : 39,578,751.48 = 15,627,996.84 : x
  2. Step 2: Convert to fraction form
    28,680,625.20/39,578,751.48 = 15,627,996.84/x
  3. Step 3: Cross multiply
    28,680,625.20x = 39,578,751.48 × 15,627,996.84
  4. Step 4: Simplify right side
    28,680,625.20x = 618,536,603,060,585.25
  5. Step 5: Solve for x
    x = 618,536,603,060,585.25/28,680,625.20
  6. Step 6: Final answer
    x = 21,566,357.04

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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.