Home / 629,745,556.77-869,363,497.17-391,667,480.46

Finding the Fourth Proportional to 629,745,556.77, 869,363,497.17 and 391,667,480.46

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Solution

The fourth proportional to 629,745,556.77, 869,363,497.17 and 391,667,480.46 is: 540,696,805.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,745,556.77 : 869,363,497.17 = 391,667,480.46 : x
  2. Step 2: Convert to fraction form
    629,745,556.77/869,363,497.17 = 391,667,480.46/x
  3. Step 3: Cross multiply
    629,745,556.77x = 869,363,497.17 × 391,667,480.46
  4. Step 4: Simplify right side
    629,745,556.77x = 340,501,410,540,468,224
  5. Step 5: Solve for x
    x = 340,501,410,540,468,224/629,745,556.77
  6. Step 6: Final answer
    x = 540,696,805.05

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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.