Home / 220,198,941.81-303,883,295.09-121,087,814.85

Finding the Fourth Proportional to 220,198,941.81, 303,883,295.09 and 121,087,814.85

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Solution

The fourth proportional to 220,198,941.81, 303,883,295.09 and 121,087,814.85 is: 167,105,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,198,941.81 : 303,883,295.09 = 121,087,814.85 : x
  2. Step 2: Convert to fraction form
    220,198,941.81/303,883,295.09 = 121,087,814.85/x
  3. Step 3: Cross multiply
    220,198,941.81x = 303,883,295.09 × 121,087,814.85
  4. Step 4: Simplify right side
    220,198,941.81x = 36,796,564,171,260,392
  5. Step 5: Solve for x
    x = 36,796,564,171,260,392/220,198,941.81
  6. Step 6: Final answer
    x = 167,105,999.10

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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.