Home / 1,268,082,619.04-1,901,164,616.40-831,493,215.20

Finding the Fourth Proportional to 1,268,082,619.04, 1,901,164,616.40 and 831,493,215.20

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Solution

The fourth proportional to 1,268,082,619.04, 1,901,164,616.40 and 831,493,215.20 is: 1,246,610,793.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,082,619.04 : 1,901,164,616.40 = 831,493,215.20 : x
  2. Step 2: Convert to fraction form
    1,268,082,619.04/1,901,164,616.40 = 831,493,215.20/x
  3. Step 3: Cross multiply
    1,268,082,619.04x = 1,901,164,616.40 × 831,493,215.20
  4. Step 4: Simplify right side
    1,268,082,619.04x = 1,580,805,479,514,910,720
  5. Step 5: Solve for x
    x = 1,580,805,479,514,910,720/1,268,082,619.04
  6. Step 6: Final answer
    x = 1,246,610,793.16

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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.