Home / 121,320,220.80-181,980,331.20-92,622,406.80

Finding the Fourth Proportional to 121,320,220.80, 181,980,331.20 and 92,622,406.80

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Solution

The fourth proportional to 121,320,220.80, 181,980,331.20 and 92,622,406.80 is: 138,933,610.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,320,220.80 : 181,980,331.20 = 92,622,406.80 : x
  2. Step 2: Convert to fraction form
    121,320,220.80/181,980,331.20 = 92,622,406.80/x
  3. Step 3: Cross multiply
    121,320,220.80x = 181,980,331.20 × 92,622,406.80
  4. Step 4: Simplify right side
    121,320,220.80x = 16,855,456,266,005,130
  5. Step 5: Solve for x
    x = 16,855,456,266,005,130/121,320,220.80
  6. Step 6: Final answer
    x = 138,933,610.20

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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.