Home / 312,647,646.84-431,452,370.52-178,683,328.14

Finding the Fourth Proportional to 312,647,646.84, 431,452,370.52 and 178,683,328.14

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Solution

The fourth proportional to 312,647,646.84, 431,452,370.52 and 178,683,328.14 is: 246,582,202.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,647,646.84 : 431,452,370.52 = 178,683,328.14 : x
  2. Step 2: Convert to fraction form
    312,647,646.84/431,452,370.52 = 178,683,328.14/x
  3. Step 3: Cross multiply
    312,647,646.84x = 431,452,370.52 × 178,683,328.14
  4. Step 4: Simplify right side
    312,647,646.84x = 77,093,345,498,406,016
  5. Step 5: Solve for x
    x = 77,093,345,498,406,016/312,647,646.84
  6. Step 6: Final answer
    x = 246,582,202.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.