Home / 143,490,332.34-198,022,938.16-80,770,477.14

Finding the Fourth Proportional to 143,490,332.34, 198,022,938.16 and 80,770,477.14

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Solution

The fourth proportional to 143,490,332.34, 198,022,938.16 and 80,770,477.14 is: 111,466,793.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,490,332.34 : 198,022,938.16 = 80,770,477.14 : x
  2. Step 2: Convert to fraction form
    143,490,332.34/198,022,938.16 = 80,770,477.14/x
  3. Step 3: Cross multiply
    143,490,332.34x = 198,022,938.16 × 80,770,477.14
  4. Step 4: Simplify right side
    143,490,332.34x = 15,994,407,199,847,914
  5. Step 5: Solve for x
    x = 15,994,407,199,847,914/143,490,332.34
  6. Step 6: Final answer
    x = 111,466,793.19

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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.