Home / 278,793,823.68-418,145,284.72-82,011,215.76

Finding the Fourth Proportional to 278,793,823.68, 418,145,284.72 and 82,011,215.76

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Solution

The fourth proportional to 278,793,823.68, 418,145,284.72 and 82,011,215.76 is: 123,003,453.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,793,823.68 : 418,145,284.72 = 82,011,215.76 : x
  2. Step 2: Convert to fraction form
    278,793,823.68/418,145,284.72 = 82,011,215.76/x
  3. Step 3: Cross multiply
    278,793,823.68x = 418,145,284.72 × 82,011,215.76
  4. Step 4: Simplify right side
    278,793,823.68x = 34,292,603,164,198,556
  5. Step 5: Solve for x
    x = 34,292,603,164,198,556/278,793,823.68
  6. Step 6: Final answer
    x = 123,003,453.63

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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.