Home / 121,124,530,442.80-181,686,795,664.20-81,452,672,369.20

Finding the Fourth Proportional to 121,124,530,442.80, 181,686,795,664.20 and 81,452,672,369.20

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Solution

The fourth proportional to 121,124,530,442.80, 181,686,795,664.20 and 81,452,672,369.20 is: 122,179,008,553.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,124,530,442.80 : 181,686,795,664.20 = 81,452,672,369.20 : x
  2. Step 2: Convert to fraction form
    121,124,530,442.80/181,686,795,664.20 = 81,452,672,369.20/x
  3. Step 3: Cross multiply
    121,124,530,442.80x = 181,686,795,664.20 × 81,452,672,369.20
  4. Step 4: Simplify right side
    121,124,530,442.80x = 14,798,875,041,045,871,067,136
  5. Step 5: Solve for x
    x = 14,798,875,041,045,871,067,136/121,124,530,442.80
  6. Step 6: Final answer
    x = 122,179,008,553.80

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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.