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Finding the Fourth Proportional to 483,669,775.80, 725,504,663.70 and 289,481,234.40

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Solution

The fourth proportional to 483,669,775.80, 725,504,663.70 and 289,481,234.40 is: 434,221,851.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,669,775.80 : 725,504,663.70 = 289,481,234.40 : x
  2. Step 2: Convert to fraction form
    483,669,775.80/725,504,663.70 = 289,481,234.40/x
  3. Step 3: Cross multiply
    483,669,775.80x = 725,504,663.70 × 289,481,234.40
  4. Step 4: Simplify right side
    483,669,775.80x = 210,019,985,610,832,864
  5. Step 5: Solve for x
    x = 210,019,985,610,832,864/483,669,775.80
  6. Step 6: Final answer
    x = 434,221,851.60

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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.