Home / 28,748,012.28-39,671,650.71-15,694,640.34

Finding the Fourth Proportional to 28,748,012.28, 39,671,650.71 and 15,694,640.34

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Solution

The fourth proportional to 28,748,012.28, 39,671,650.71 and 15,694,640.34 is: 21,658,272.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748,012.28 : 39,671,650.71 = 15,694,640.34 : x
  2. Step 2: Convert to fraction form
    28,748,012.28/39,671,650.71 = 15,694,640.34/x
  3. Step 3: Cross multiply
    28,748,012.28x = 39,671,650.71 × 15,694,640.34
  4. Step 4: Simplify right side
    28,748,012.28x = 622,632,289,587,555.62
  5. Step 5: Solve for x
    x = 622,632,289,587,555.62/28,748,012.28
  6. Step 6: Final answer
    x = 21,658,272.70

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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.