Home / 225,692,945.79-311,490,309.06-137,638,022.94

Finding the Fourth Proportional to 225,692,945.79, 311,490,309.06 and 137,638,022.94

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Solution

The fourth proportional to 225,692,945.79, 311,490,309.06 and 137,638,022.94 is: 189,961,233.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,692,945.79 : 311,490,309.06 = 137,638,022.94 : x
  2. Step 2: Convert to fraction form
    225,692,945.79/311,490,309.06 = 137,638,022.94/x
  3. Step 3: Cross multiply
    225,692,945.79x = 311,490,309.06 × 137,638,022.94
  4. Step 4: Simplify right side
    225,692,945.79x = 42,872,910,303,987,968
  5. Step 5: Solve for x
    x = 42,872,910,303,987,968/225,692,945.79
  6. Step 6: Final answer
    x = 189,961,233.19

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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.