Home / 143,551,935.91-198,075,540.40-80,818,278.31

Finding the Fourth Proportional to 143,551,935.91, 198,075,540.40 and 80,818,278.31

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Solution

The fourth proportional to 143,551,935.91, 198,075,540.40 and 80,818,278.31 is: 111,514,512.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,551,935.91 : 198,075,540.40 = 80,818,278.31 : x
  2. Step 2: Convert to fraction form
    143,551,935.91/198,075,540.40 = 80,818,278.31/x
  3. Step 3: Cross multiply
    143,551,935.91x = 198,075,540.40 × 80,818,278.31
  4. Step 4: Simplify right side
    143,551,935.91x = 16,008,124,150,450,850
  5. Step 5: Solve for x
    x = 16,008,124,150,450,850/143,551,935.91
  6. Step 6: Final answer
    x = 111,514,512.49

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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.