Home / 20,750,584.43-28,638,331.25-12,048,756.78

Finding the Fourth Proportional to 20,750,584.43, 28,638,331.25 and 12,048,756.78

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Solution

The fourth proportional to 20,750,584.43, 28,638,331.25 and 12,048,756.78 is: 16,628,750.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750,584.43 : 28,638,331.25 = 12,048,756.78 : x
  2. Step 2: Convert to fraction form
    20,750,584.43/28,638,331.25 = 12,048,756.78/x
  3. Step 3: Cross multiply
    20,750,584.43x = 28,638,331.25 × 12,048,756.78
  4. Step 4: Simplify right side
    20,750,584.43x = 345,056,287,849,106.19
  5. Step 5: Solve for x
    x = 345,056,287,849,106.19/20,750,584.43
  6. Step 6: Final answer
    x = 16,628,750.34

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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.