Home / 20,723,331-28,598,196.78-12,138,627

Finding the Fourth Proportional to 20,723,331, 28,598,196.78 and 12,138,627

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Solution

The fourth proportional to 20,723,331, 28,598,196.78 and 12,138,627 is: 16,751,305.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723,331 : 28,598,196.78 = 12,138,627 : x
  2. Step 2: Convert to fraction form
    20,723,331/28,598,196.78 = 12,138,627/x
  3. Step 3: Cross multiply
    20,723,331x = 28,598,196.78 × 12,138,627
  4. Step 4: Simplify right side
    20,723,331x = 347,142,843,585,021.06
  5. Step 5: Solve for x
    x = 347,142,843,585,021.06/20,723,331
  6. Step 6: Final answer
    x = 16,751,305.26

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1.5x scale

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.