Home / 20,776,544.20-31,164,816.30-19,264,889.80

Finding the Fourth Proportional to 20,776,544.20, 31,164,816.30 and 19,264,889.80

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Solution

The fourth proportional to 20,776,544.20, 31,164,816.30 and 19,264,889.80 is: 28,897,334.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,544.20 : 31,164,816.30 = 19,264,889.80 : x
  2. Step 2: Convert to fraction form
    20,776,544.20/31,164,816.30 = 19,264,889.80/x
  3. Step 3: Cross multiply
    20,776,544.20x = 31,164,816.30 × 19,264,889.80
  4. Step 4: Simplify right side
    20,776,544.20x = 600,386,751,656,743.75
  5. Step 5: Solve for x
    x = 600,386,751,656,743.75/20,776,544.20
  6. Step 6: Final answer
    x = 28,897,334.70

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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.