Home / 280,600,848,673.70-420,901,273,010.55-71,221,597,729.70

Finding the Fourth Proportional to 280,600,848,673.70, 420,901,273,010.55 and 71,221,597,729.70

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Solution

The fourth proportional to 280,600,848,673.70, 420,901,273,010.55 and 71,221,597,729.70 is: 106,832,396,594.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,600,848,673.70 : 420,901,273,010.55 = 71,221,597,729.70 : x
  2. Step 2: Convert to fraction form
    280,600,848,673.70/420,901,273,010.55 = 71,221,597,729.70/x
  3. Step 3: Cross multiply
    280,600,848,673.70x = 420,901,273,010.55 × 71,221,597,729.70
  4. Step 4: Simplify right side
    280,600,848,673.70x = 29,977,261,150,276,025,319,424
  5. Step 5: Solve for x
    x = 29,977,261,150,276,025,319,424/280,600,848,673.70
  6. Step 6: Final answer
    x = 106,832,396,594.55

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1.5x scale

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.