Home / 259,281,011.10-388,921,516.65-214,491,251.10

Finding the Fourth Proportional to 259,281,011.10, 388,921,516.65 and 214,491,251.10

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Solution

The fourth proportional to 259,281,011.10, 388,921,516.65 and 214,491,251.10 is: 321,736,876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,281,011.10 : 388,921,516.65 = 214,491,251.10 : x
  2. Step 2: Convert to fraction form
    259,281,011.10/388,921,516.65 = 214,491,251.10/x
  3. Step 3: Cross multiply
    259,281,011.10x = 388,921,516.65 × 214,491,251.10
  4. Step 4: Simplify right side
    259,281,011.10x = 83,420,262,685,967,968
  5. Step 5: Solve for x
    x = 83,420,262,685,967,968/259,281,011.10
  6. Step 6: Final answer
    x = 321,736,876.65

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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.