Home / 412,992,000.30-619,488,000.45-289,372,262.70

Finding the Fourth Proportional to 412,992,000.30, 619,488,000.45 and 289,372,262.70

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Solution

The fourth proportional to 412,992,000.30, 619,488,000.45 and 289,372,262.70 is: 434,058,394.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,992,000.30 : 619,488,000.45 = 289,372,262.70 : x
  2. Step 2: Convert to fraction form
    412,992,000.30/619,488,000.45 = 289,372,262.70/x
  3. Step 3: Cross multiply
    412,992,000.30x = 619,488,000.45 × 289,372,262.70
  4. Step 4: Simplify right side
    412,992,000.30x = 179,262,644,405,715,136
  5. Step 5: Solve for x
    x = 179,262,644,405,715,136/412,992,000.30
  6. Step 6: Final answer
    x = 434,058,394.05

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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.