Home / 20,147,905.80-30,221,858.70-19,728,001.80

Finding the Fourth Proportional to 20,147,905.80, 30,221,858.70 and 19,728,001.80

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Solution

The fourth proportional to 20,147,905.80, 30,221,858.70 and 19,728,001.80 is: 29,592,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147,905.80 : 30,221,858.70 = 19,728,001.80 : x
  2. Step 2: Convert to fraction form
    20,147,905.80/30,221,858.70 = 19,728,001.80/x
  3. Step 3: Cross multiply
    20,147,905.80x = 30,221,858.70 × 19,728,001.80
  4. Step 4: Simplify right side
    20,147,905.80x = 596,216,882,832,945.62
  5. Step 5: Solve for x
    x = 596,216,882,832,945.62/20,147,905.80
  6. Step 6: Final answer
    x = 29,592,002.70

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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.