Home / 1,321,127,758.95-1,982,464,386.90-492,653,755.23

Finding the Fourth Proportional to 1,321,127,758.95, 1,982,464,386.90 and 492,653,755.23

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Solution

The fourth proportional to 1,321,127,758.95, 1,982,464,386.90 and 492,653,755.23 is: 739,268,793.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,127,758.95 : 1,982,464,386.90 = 492,653,755.23 : x
  2. Step 2: Convert to fraction form
    1,321,127,758.95/1,982,464,386.90 = 492,653,755.23/x
  3. Step 3: Cross multiply
    1,321,127,758.95x = 1,982,464,386.90 × 492,653,755.23
  4. Step 4: Simplify right side
    1,321,127,758.95x = 976,668,524,816,024,704
  5. Step 5: Solve for x
    x = 976,668,524,816,024,704/1,321,127,758.95
  6. Step 6: Final answer
    x = 739,268,793.80

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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.