Home / 103,786,791-143,202,010.08-61,962,716.40

Finding the Fourth Proportional to 103,786,791, 143,202,010.08 and 61,962,716.40

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Solution

The fourth proportional to 103,786,791, 143,202,010.08 and 61,962,716.40 is: 85,494,362.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,786,791 : 143,202,010.08 = 61,962,716.40 : x
  2. Step 2: Convert to fraction form
    103,786,791/143,202,010.08 = 61,962,716.40/x
  3. Step 3: Cross multiply
    103,786,791x = 143,202,010.08 × 61,962,716.40
  4. Step 4: Simplify right side
    103,786,791x = 8,873,185,538,496,982
  5. Step 5: Solve for x
    x = 8,873,185,538,496,982/103,786,791
  6. Step 6: Final answer
    x = 85,494,362.56

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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.