Home / 121,720,401-182,591,228.70-30,843,993.24

Finding the Fourth Proportional to 121,720,401, 182,591,228.70 and 30,843,993.24

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Solution

The fourth proportional to 121,720,401, 182,591,228.70 and 30,843,993.24 is: 46,268,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,720,401 : 182,591,228.70 = 30,843,993.24 : x
  2. Step 2: Convert to fraction form
    121,720,401/182,591,228.70 = 30,843,993.24/x
  3. Step 3: Cross multiply
    121,720,401x = 182,591,228.70 × 30,843,993.24
  4. Step 4: Simplify right side
    121,720,401x = 5,631,842,623,706,093
  5. Step 5: Solve for x
    x = 5,631,842,623,706,093/121,720,401
  6. Step 6: Final answer
    x = 46,268,682.80

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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.