Home / 140,802,235.20-194,303,616.48-78,077,986.56

Finding the Fourth Proportional to 140,802,235.20, 194,303,616.48 and 78,077,986.56

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Solution

The fourth proportional to 140,802,235.20, 194,303,616.48 and 78,077,986.56 is: 107,745,698.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,802,235.20 : 194,303,616.48 = 78,077,986.56 : x
  2. Step 2: Convert to fraction form
    140,802,235.20/194,303,616.48 = 78,077,986.56/x
  3. Step 3: Cross multiply
    140,802,235.20x = 194,303,616.48 × 78,077,986.56
  4. Step 4: Simplify right side
    140,802,235.20x = 15,170,835,156,084,834
  5. Step 5: Solve for x
    x = 15,170,835,156,084,834/140,802,235.20
  6. Step 6: Final answer
    x = 107,745,698.32

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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.