Home / 279,859,205.08-386,217,383.75-154,419,538.33

Finding the Fourth Proportional to 279,859,205.08, 386,217,383.75 and 154,419,538.33

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Solution

The fourth proportional to 279,859,205.08, 386,217,383.75 and 154,419,538.33 is: 213,105,408.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,859,205.08 : 386,217,383.75 = 154,419,538.33 : x
  2. Step 2: Convert to fraction form
    279,859,205.08/386,217,383.75 = 154,419,538.33/x
  3. Step 3: Cross multiply
    279,859,205.08x = 386,217,383.75 × 154,419,538.33
  4. Step 4: Simplify right side
    279,859,205.08x = 59,639,510,093,695,448
  5. Step 5: Solve for x
    x = 59,639,510,093,695,448/279,859,205.08
  6. Step 6: Final answer
    x = 213,105,408.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.