Home / 279,163,281.53-418,745,447.17-115,221,212.57

Finding the Fourth Proportional to 279,163,281.53, 418,745,447.17 and 115,221,212.57

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Solution

The fourth proportional to 279,163,281.53, 418,745,447.17 and 115,221,212.57 is: 172,832,035.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,163,281.53 : 418,745,447.17 = 115,221,212.57 : x
  2. Step 2: Convert to fraction form
    279,163,281.53/418,745,447.17 = 115,221,212.57/x
  3. Step 3: Cross multiply
    279,163,281.53x = 418,745,447.17 × 115,221,212.57
  4. Step 4: Simplify right side
    279,163,281.53x = 48,248,358,179,499,736
  5. Step 5: Solve for x
    x = 48,248,358,179,499,736/279,163,281.53
  6. Step 6: Final answer
    x = 172,832,035.49

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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.