Home / 15,555,221.52-21,463,001.82-8,938,532.28

Finding the Fourth Proportional to 15,555,221.52, 21,463,001.82 and 8,938,532.28

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Solution

The fourth proportional to 15,555,221.52, 21,463,001.82 and 8,938,532.28 is: 12,333,333.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555,221.52 : 21,463,001.82 = 8,938,532.28 : x
  2. Step 2: Convert to fraction form
    15,555,221.52/21,463,001.82 = 8,938,532.28/x
  3. Step 3: Cross multiply
    15,555,221.52x = 21,463,001.82 × 8,938,532.28
  4. Step 4: Simplify right side
    15,555,221.52x = 191,847,734,593,768.75
  5. Step 5: Solve for x
    x = 191,847,734,593,768.75/15,555,221.52
  6. Step 6: Final answer
    x = 12,333,333.49

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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.