Home / 393,216,338.32-589,920,538.44-130,900,382.12

Finding the Fourth Proportional to 393,216,338.32, 589,920,538.44 and 130,900,382.12

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Solution

The fourth proportional to 393,216,338.32, 589,920,538.44 and 130,900,382.12 is: 196,382,541.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,216,338.32 : 589,920,538.44 = 130,900,382.12 : x
  2. Step 2: Convert to fraction form
    393,216,338.32/589,920,538.44 = 130,900,382.12/x
  3. Step 3: Cross multiply
    393,216,338.32x = 589,920,538.44 × 130,900,382.12
  4. Step 4: Simplify right side
    393,216,338.32x = 77,220,823,902,232,160
  5. Step 5: Solve for x
    x = 77,220,823,902,232,160/393,216,338.32
  6. Step 6: Final answer
    x = 196,382,541.56

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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.