Home / 491,620,628.40-736,951,646.82-196,427,751.90

Finding the Fourth Proportional to 491,620,628.40, 736,951,646.82 and 196,427,751.90

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Solution

The fourth proportional to 491,620,628.40, 736,951,646.82 and 196,427,751.90 is: 294,450,124.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,620,628.40 : 736,951,646.82 = 196,427,751.90 : x
  2. Step 2: Convert to fraction form
    491,620,628.40/736,951,646.82 = 196,427,751.90/x
  3. Step 3: Cross multiply
    491,620,628.40x = 736,951,646.82 × 196,427,751.90
  4. Step 4: Simplify right side
    491,620,628.40x = 144,757,755,243,855,392
  5. Step 5: Solve for x
    x = 144,757,755,243,855,392/491,620,628.40
  6. Step 6: Final answer
    x = 294,450,124.51

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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.