Home / 57,098,500.56-78,795,991.92-30,993,014.40

Finding the Fourth Proportional to 57,098,500.56, 78,795,991.92 and 30,993,014.40

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Solution

The fourth proportional to 57,098,500.56, 78,795,991.92 and 30,993,014.40 is: 42,770,393.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,098,500.56 : 78,795,991.92 = 30,993,014.40 : x
  2. Step 2: Convert to fraction form
    57,098,500.56/78,795,991.92 = 30,993,014.40/x
  3. Step 3: Cross multiply
    57,098,500.56x = 78,795,991.92 × 30,993,014.40
  4. Step 4: Simplify right side
    57,098,500.56x = 2,442,125,312,238,843.50
  5. Step 5: Solve for x
    x = 2,442,125,312,238,843.50/57,098,500.56
  6. Step 6: Final answer
    x = 42,770,393.06

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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.