Home / 18,840,010.40-28,260,015.60-6,871,191.20

Finding the Fourth Proportional to 18,840,010.40, 28,260,015.60 and 6,871,191.20

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Solution

The fourth proportional to 18,840,010.40, 28,260,015.60 and 6,871,191.20 is: 10,306,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840,010.40 : 28,260,015.60 = 6,871,191.20 : x
  2. Step 2: Convert to fraction form
    18,840,010.40/28,260,015.60 = 6,871,191.20/x
  3. Step 3: Cross multiply
    18,840,010.40x = 28,260,015.60 × 6,871,191.20
  4. Step 4: Simplify right side
    18,840,010.40x = 194,179,970,502,582.75
  5. Step 5: Solve for x
    x = 194,179,970,502,582.75/18,840,010.40
  6. Step 6: Final answer
    x = 10,306,786.80

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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.