Home / 19,840,010.40-29,760,015.60-8,481,607.20

Finding the Fourth Proportional to 19,840,010.40, 29,760,015.60 and 8,481,607.20

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Solution

The fourth proportional to 19,840,010.40, 29,760,015.60 and 8,481,607.20 is: 12,722,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,840,010.40 : 29,760,015.60 = 8,481,607.20 : x
  2. Step 2: Convert to fraction form
    19,840,010.40/29,760,015.60 = 8,481,607.20/x
  3. Step 3: Cross multiply
    19,840,010.40x = 29,760,015.60 × 8,481,607.20
  4. Step 4: Simplify right side
    19,840,010.40x = 252,412,762,585,072.31
  5. Step 5: Solve for x
    x = 252,412,762,585,072.31/19,840,010.40
  6. Step 6: Final answer
    x = 12,722,410.80

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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.