Home / 20,776,555.20-31,164,832.80-19,264,900.80

Finding the Fourth Proportional to 20,776,555.20, 31,164,832.80 and 19,264,900.80

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Solution

The fourth proportional to 20,776,555.20, 31,164,832.80 and 19,264,900.80 is: 28,897,351.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,555.20 : 31,164,832.80 = 19,264,900.80 : x
  2. Step 2: Convert to fraction form
    20,776,555.20/31,164,832.80 = 19,264,900.80/x
  3. Step 3: Cross multiply
    20,776,555.20x = 31,164,832.80 × 19,264,900.80
  4. Step 4: Simplify right side
    20,776,555.20x = 600,387,412,340,586.25
  5. Step 5: Solve for x
    x = 600,387,412,340,586.25/20,776,555.20
  6. Step 6: Final answer
    x = 28,897,351.20

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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.