Home / 298,955,238.40-448,432,857.60-221,471,140.60

Finding the Fourth Proportional to 298,955,238.40, 448,432,857.60 and 221,471,140.60

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Solution

The fourth proportional to 298,955,238.40, 448,432,857.60 and 221,471,140.60 is: 332,206,710.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,955,238.40 : 448,432,857.60 = 221,471,140.60 : x
  2. Step 2: Convert to fraction form
    298,955,238.40/448,432,857.60 = 221,471,140.60/x
  3. Step 3: Cross multiply
    298,955,238.40x = 448,432,857.60 × 221,471,140.60
  4. Step 4: Simplify right side
    298,955,238.40x = 99,314,936,455,189,376
  5. Step 5: Solve for x
    x = 99,314,936,455,189,376/298,955,238.40
  6. Step 6: Final answer
    x = 332,206,710.90

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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.