Home / 438,983,719.92-658,212,604.41-139,723,383.37

Finding the Fourth Proportional to 438,983,719.92, 658,212,604.41 and 139,723,383.37

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Solution

The fourth proportional to 438,983,719.92, 658,212,604.41 and 139,723,383.37 is: 209,501,373.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,983,719.92 : 658,212,604.41 = 139,723,383.37 : x
  2. Step 2: Convert to fraction form
    438,983,719.92/658,212,604.41 = 139,723,383.37/x
  3. Step 3: Cross multiply
    438,983,719.92x = 658,212,604.41 × 139,723,383.37
  4. Step 4: Simplify right side
    438,983,719.92x = 91,967,692,062,813,072
  5. Step 5: Solve for x
    x = 91,967,692,062,813,072/438,983,719.92
  6. Step 6: Final answer
    x = 209,501,373.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.