Home / 368,412,383.53-508,453,671.04-209,681,099.73

Finding the Fourth Proportional to 368,412,383.53, 508,453,671.04 and 209,681,099.73

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Solution

The fourth proportional to 368,412,383.53, 508,453,671.04 and 209,681,099.73 is: 289,385,291.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,412,383.53 : 508,453,671.04 = 209,681,099.73 : x
  2. Step 2: Convert to fraction form
    368,412,383.53/508,453,671.04 = 209,681,099.73/x
  3. Step 3: Cross multiply
    368,412,383.53x = 508,453,671.04 × 209,681,099.73
  4. Step 4: Simplify right side
    368,412,383.53x = 106,613,124,904,054,896
  5. Step 5: Solve for x
    x = 106,613,124,904,054,896/368,412,383.53
  6. Step 6: Final answer
    x = 289,385,291.24

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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.