Home / 135,555,405.85-187,143,278.76-103,705,653.28

Finding the Fourth Proportional to 135,555,405.85, 187,143,278.76 and 103,705,653.28

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Solution

The fourth proportional to 135,555,405.85, 187,143,278.76 and 103,705,653.28 is: 143,172,571.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,555,405.85 : 187,143,278.76 = 103,705,653.28 : x
  2. Step 2: Convert to fraction form
    135,555,405.85/187,143,278.76 = 103,705,653.28/x
  3. Step 3: Cross multiply
    135,555,405.85x = 187,143,278.76 × 103,705,653.28
  4. Step 4: Simplify right side
    135,555,405.85x = 19,407,815,980,766,948
  5. Step 5: Solve for x
    x = 19,407,815,980,766,948/135,555,405.85
  6. Step 6: Final answer
    x = 143,172,571.09

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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.