Home / 140,409,790.56-193,764,399.48-78,530,083.20

Finding the Fourth Proportional to 140,409,790.56, 193,764,399.48 and 78,530,083.20

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Solution

The fourth proportional to 140,409,790.56, 193,764,399.48 and 78,530,083.20 is: 108,370,893.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,409,790.56 : 193,764,399.48 = 78,530,083.20 : x
  2. Step 2: Convert to fraction form
    140,409,790.56/193,764,399.48 = 78,530,083.20/x
  3. Step 3: Cross multiply
    140,409,790.56x = 193,764,399.48 × 78,530,083.20
  4. Step 4: Simplify right side
    140,409,790.56x = 15,216,334,412,362,436
  5. Step 5: Solve for x
    x = 15,216,334,412,362,436/140,409,790.56
  6. Step 6: Final answer
    x = 108,370,893.17

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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.