Home / 393,216,240.87-589,920,393.38-130,900,285.08

Finding the Fourth Proportional to 393,216,240.87, 589,920,393.38 and 130,900,285.08

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Solution

The fourth proportional to 393,216,240.87, 589,920,393.38 and 130,900,285.08 is: 196,382,396.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,216,240.87 : 589,920,393.38 = 130,900,285.08 : x
  2. Step 2: Convert to fraction form
    393,216,240.87/589,920,393.38 = 130,900,285.08/x
  3. Step 3: Cross multiply
    393,216,240.87x = 589,920,393.38 × 130,900,285.08
  4. Step 4: Simplify right side
    393,216,240.87x = 77,220,747,667,947,744
  5. Step 5: Solve for x
    x = 77,220,747,667,947,744/393,216,240.87
  6. Step 6: Final answer
    x = 196,382,396.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.