Home / 305,856,000.70-458,784,001.05-272,412,979.90

Finding the Fourth Proportional to 305,856,000.70, 458,784,001.05 and 272,412,979.90

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Solution

The fourth proportional to 305,856,000.70, 458,784,001.05 and 272,412,979.90 is: 408,619,469.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,856,000.70 : 458,784,001.05 = 272,412,979.90 : x
  2. Step 2: Convert to fraction form
    305,856,000.70/458,784,001.05 = 272,412,979.90/x
  3. Step 3: Cross multiply
    305,856,000.70x = 458,784,001.05 × 272,412,979.90
  4. Step 4: Simplify right side
    305,856,000.70x = 124,978,716,856,475,216
  5. Step 5: Solve for x
    x = 124,978,716,856,475,216/305,856,000.70
  6. Step 6: Final answer
    x = 408,619,469.85

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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.