Home / 390,230,993.54-538,552,823.36-214,053,039.65

Finding the Fourth Proportional to 390,230,993.54, 538,552,823.36 and 214,053,039.65

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Solution

The fourth proportional to 390,230,993.54, 538,552,823.36 and 214,053,039.65 is: 295,411,873.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,230,993.54 : 538,552,823.36 = 214,053,039.65 : x
  2. Step 2: Convert to fraction form
    390,230,993.54/538,552,823.36 = 214,053,039.65/x
  3. Step 3: Cross multiply
    390,230,993.54x = 538,552,823.36 × 214,053,039.65
  4. Step 4: Simplify right side
    390,230,993.54x = 115,278,868,848,534,512
  5. Step 5: Solve for x
    x = 115,278,868,848,534,512/390,230,993.54
  6. Step 6: Final answer
    x = 295,411,873.37

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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.