Home / 1,321,127,732.18-1,982,464,346.73-492,653,728.46

Finding the Fourth Proportional to 1,321,127,732.18, 1,982,464,346.73 and 492,653,728.46

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Solution

The fourth proportional to 1,321,127,732.18, 1,982,464,346.73 and 492,653,728.46 is: 739,268,753.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,127,732.18 : 1,982,464,346.73 = 492,653,728.46 : x
  2. Step 2: Convert to fraction form
    1,321,127,732.18/1,982,464,346.73 = 492,653,728.46/x
  3. Step 3: Cross multiply
    1,321,127,732.18x = 1,982,464,346.73 × 492,653,728.46
  4. Step 4: Simplify right side
    1,321,127,732.18x = 976,668,451,959,572,864
  5. Step 5: Solve for x
    x = 976,668,451,959,572,864/1,321,127,732.18
  6. Step 6: Final answer
    x = 739,268,753.63

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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.