Home / 198,622,511.72-274,098,809.37-123,240,803.00

Finding the Fourth Proportional to 198,622,511.72, 274,098,809.37 and 123,240,803.00

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Solution

The fourth proportional to 198,622,511.72, 274,098,809.37 and 123,240,803.00 is: 170,072,148.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,622,511.72 : 274,098,809.37 = 123,240,803.00 : x
  2. Step 2: Convert to fraction form
    198,622,511.72/274,098,809.37 = 123,240,803.00/x
  3. Step 3: Cross multiply
    198,622,511.72x = 274,098,809.37 × 123,240,803.00
  4. Step 4: Simplify right side
    198,622,511.72x = 33,780,157,366,501,776
  5. Step 5: Solve for x
    x = 33,780,157,366,501,776/198,622,511.72
  6. Step 6: Final answer
    x = 170,072,148.79

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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.