Home / 143,124,860.80-197,520,744.66-107,780,307.94

Finding the Fourth Proportional to 143,124,860.80, 197,520,744.66 and 107,780,307.94

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Solution

The fourth proportional to 143,124,860.80, 197,520,744.66 and 107,780,307.94 is: 148,743,178.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,124,860.80 : 197,520,744.66 = 107,780,307.94 : x
  2. Step 2: Convert to fraction form
    143,124,860.80/197,520,744.66 = 107,780,307.94/x
  3. Step 3: Cross multiply
    143,124,860.80x = 197,520,744.66 × 107,780,307.94
  4. Step 4: Simplify right side
    143,124,860.80x = 21,288,846,683,992,908
  5. Step 5: Solve for x
    x = 21,288,846,683,992,908/143,124,860.80
  6. Step 6: Final answer
    x = 148,743,178.26

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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.