Home / 18,372,685.20-27,559,027.80-12,633,122.40

Finding the Fourth Proportional to 18,372,685.20, 27,559,027.80 and 12,633,122.40

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Solution

The fourth proportional to 18,372,685.20, 27,559,027.80 and 12,633,122.40 is: 18,949,683.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372,685.20 : 27,559,027.80 = 12,633,122.40 : x
  2. Step 2: Convert to fraction form
    18,372,685.20/27,559,027.80 = 12,633,122.40/x
  3. Step 3: Cross multiply
    18,372,685.20x = 27,559,027.80 × 12,633,122.40
  4. Step 4: Simplify right side
    18,372,685.20x = 348,156,571,422,402.75
  5. Step 5: Solve for x
    x = 348,156,571,422,402.75/18,372,685.20
  6. Step 6: Final answer
    x = 18,949,683.60

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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.