Home / 18,169,007.25-27,259,415.78-12,128,294.55

Finding the Fourth Proportional to 18,169,007.25, 27,259,415.78 and 12,128,294.55

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Solution

The fourth proportional to 18,169,007.25, 27,259,415.78 and 12,128,294.55 is: 18,196,383.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169,007.25 : 27,259,415.78 = 12,128,294.55 : x
  2. Step 2: Convert to fraction form
    18,169,007.25/27,259,415.78 = 12,128,294.55/x
  3. Step 3: Cross multiply
    18,169,007.25x = 27,259,415.78 × 12,128,294.55
  4. Step 4: Simplify right side
    18,169,007.25x = 330,610,223,780,116.50
  5. Step 5: Solve for x
    x = 330,610,223,780,116.50/18,169,007.25
  6. Step 6: Final answer
    x = 18,196,383.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.