Home / 1,321,127,576.86-1,982,464,113.71-492,653,573.14

Finding the Fourth Proportional to 1,321,127,576.86, 1,982,464,113.71 and 492,653,573.14

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Solution

The fourth proportional to 1,321,127,576.86, 1,982,464,113.71 and 492,653,573.14 is: 739,268,520.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,127,576.86 : 1,982,464,113.71 = 492,653,573.14 : x
  2. Step 2: Convert to fraction form
    1,321,127,576.86/1,982,464,113.71 = 492,653,573.14/x
  3. Step 3: Cross multiply
    1,321,127,576.86x = 1,982,464,113.71 × 492,653,573.14
  4. Step 4: Simplify right side
    1,321,127,576.86x = 976,668,029,238,591,488
  5. Step 5: Solve for x
    x = 976,668,029,238,591,488/1,321,127,576.86
  6. Step 6: Final answer
    x = 739,268,520.58

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Double scale
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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.