Home / 28,382,116.92-39,173,020.38-18,575,608.92

Finding the Fourth Proportional to 28,382,116.92, 39,173,020.38 and 18,575,608.92

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Solution

The fourth proportional to 28,382,116.92, 39,173,020.38 and 18,575,608.92 is: 25,638,070.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,382,116.92 : 39,173,020.38 = 18,575,608.92 : x
  2. Step 2: Convert to fraction form
    28,382,116.92/39,173,020.38 = 18,575,608.92/x
  3. Step 3: Cross multiply
    28,382,116.92x = 39,173,020.38 × 18,575,608.92
  4. Step 4: Simplify right side
    28,382,116.92x = 727,662,706,794,069.88
  5. Step 5: Solve for x
    x = 727,662,706,794,069.88/28,382,116.92
  6. Step 6: Final answer
    x = 25,638,070.23

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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.