Home / 631,123,571.77-870,933,822.11-352,667,383.45

Finding the Fourth Proportional to 631,123,571.77, 870,933,822.11 and 352,667,383.45

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Solution

The fourth proportional to 631,123,571.77, 870,933,822.11 and 352,667,383.45 is: 486,671,653.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,123,571.77 : 870,933,822.11 = 352,667,383.45 : x
  2. Step 2: Convert to fraction form
    631,123,571.77/870,933,822.11 = 352,667,383.45/x
  3. Step 3: Cross multiply
    631,123,571.77x = 870,933,822.11 × 352,667,383.45
  4. Step 4: Simplify right side
    631,123,571.77x = 307,149,952,199,023,296
  5. Step 5: Solve for x
    x = 307,149,952,199,023,296/631,123,571.77
  6. Step 6: Final answer
    x = 486,671,653.44

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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.