Home / 815,745,689.21-1,222,747,359.95-465,237,026.73

Finding the Fourth Proportional to 815,745,689.21, 1,222,747,359.95 and 465,237,026.73

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Solution

The fourth proportional to 815,745,689.21, 1,222,747,359.95 and 465,237,026.73 is: 697,358,691.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,745,689.21 : 1,222,747,359.95 = 465,237,026.73 : x
  2. Step 2: Convert to fraction form
    815,745,689.21/1,222,747,359.95 = 465,237,026.73/x
  3. Step 3: Cross multiply
    815,745,689.21x = 1,222,747,359.95 × 465,237,026.73
  4. Step 4: Simplify right side
    815,745,689.21x = 568,867,346,185,095,104
  5. Step 5: Solve for x
    x = 568,867,346,185,095,104/815,745,689.21
  6. Step 6: Final answer
    x = 697,358,691.21

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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.