Home / 639,454,562.40-959,181,843.60-154,780,370.40

Finding the Fourth Proportional to 639,454,562.40, 959,181,843.60 and 154,780,370.40

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Solution

The fourth proportional to 639,454,562.40, 959,181,843.60 and 154,780,370.40 is: 232,170,555.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,454,562.40 : 959,181,843.60 = 154,780,370.40 : x
  2. Step 2: Convert to fraction form
    639,454,562.40/959,181,843.60 = 154,780,370.40/x
  3. Step 3: Cross multiply
    639,454,562.40x = 959,181,843.60 × 154,780,370.40
  4. Step 4: Simplify right side
    639,454,562.40x = 148,462,521,033,362,880
  5. Step 5: Solve for x
    x = 148,462,521,033,362,880/639,454,562.40
  6. Step 6: Final answer
    x = 232,170,555.60

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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.