Home / 278,446,069.82-417,865,374.97-130,900,364.27

Finding the Fourth Proportional to 278,446,069.82, 417,865,374.97 and 130,900,364.27

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Solution

The fourth proportional to 278,446,069.82, 417,865,374.97 and 130,900,364.27 is: 196,442,815.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,446,069.82 : 417,865,374.97 = 130,900,364.27 : x
  2. Step 2: Convert to fraction form
    278,446,069.82/417,865,374.97 = 130,900,364.27/x
  3. Step 3: Cross multiply
    278,446,069.82x = 417,865,374.97 × 130,900,364.27
  4. Step 4: Simplify right side
    278,446,069.82x = 54,698,729,799,393,144
  5. Step 5: Solve for x
    x = 54,698,729,799,393,144/278,446,069.82
  6. Step 6: Final answer
    x = 196,442,815.07

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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.