Home / 221,151,999.80-331,727,999.70-98,330,079.80

Finding the Fourth Proportional to 221,151,999.80, 331,727,999.70 and 98,330,079.80

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Solution

The fourth proportional to 221,151,999.80, 331,727,999.70 and 98,330,079.80 is: 147,495,119.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,151,999.80 : 331,727,999.70 = 98,330,079.80 : x
  2. Step 2: Convert to fraction form
    221,151,999.80/331,727,999.70 = 98,330,079.80/x
  3. Step 3: Cross multiply
    221,151,999.80x = 331,727,999.70 × 98,330,079.80
  4. Step 4: Simplify right side
    221,151,999.80x = 32,618,840,682,395,372
  5. Step 5: Solve for x
    x = 32,618,840,682,395,372/221,151,999.80
  6. Step 6: Final answer
    x = 147,495,119.70

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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.