Home / 18,240,383.28-27,345,121.92-7,997,480.40

Finding the Fourth Proportional to 18,240,383.28, 27,345,121.92 and 7,997,480.40

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Solution

The fourth proportional to 18,240,383.28, 27,345,121.92 and 7,997,480.40 is: 11,989,445.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240,383.28 : 27,345,121.92 = 7,997,480.40 : x
  2. Step 2: Convert to fraction form
    18,240,383.28/27,345,121.92 = 7,997,480.40/x
  3. Step 3: Cross multiply
    18,240,383.28x = 27,345,121.92 × 7,997,480.40
  4. Step 4: Simplify right side
    18,240,383.28x = 218,692,076,590,810.41
  5. Step 5: Solve for x
    x = 218,692,076,590,810.41/18,240,383.28
  6. Step 6: Final answer
    x = 11,989,445.25

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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.