Home / 629,745,557.77-869,363,498.55-391,667,481.46

Finding the Fourth Proportional to 629,745,557.77, 869,363,498.55 and 391,667,481.46

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Solution

The fourth proportional to 629,745,557.77, 869,363,498.55 and 391,667,481.46 is: 540,696,806.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,745,557.77 : 869,363,498.55 = 391,667,481.46 : x
  2. Step 2: Convert to fraction form
    629,745,557.77/869,363,498.55 = 391,667,481.46/x
  3. Step 3: Cross multiply
    629,745,557.77x = 869,363,498.55 × 391,667,481.46
  4. Step 4: Simplify right side
    629,745,557.77x = 340,501,411,950,332,800
  5. Step 5: Solve for x
    x = 340,501,411,950,332,800/629,745,557.77
  6. Step 6: Final answer
    x = 540,696,806.43

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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.