Home / 278,992,316,257.62-418,148,489,008.32-144,612,721,622.05

Finding the Fourth Proportional to 278,992,316,257.62, 418,148,489,008.32 and 144,612,721,622.05

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Solution

The fourth proportional to 278,992,316,257.62, 418,148,489,008.32 and 144,612,721,622.05 is: 216,742,854,601.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,992,316,257.62 : 418,148,489,008.32 = 144,612,721,622.05 : x
  2. Step 2: Convert to fraction form
    278,992,316,257.62/418,148,489,008.32 = 144,612,721,622.05/x
  3. Step 3: Cross multiply
    278,992,316,257.62x = 418,148,489,008.32 × 144,612,721,622.05
  4. Step 4: Simplify right side
    278,992,316,257.62x = 60,469,591,037,641,010,184,192
  5. Step 5: Solve for x
    x = 60,469,591,037,641,010,184,192/278,992,316,257.62
  6. Step 6: Final answer
    x = 216,742,854,601.79

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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.