Home / 387,994,813.68-535,352,915.16-222,950,496.72

Finding the Fourth Proportional to 387,994,813.68, 535,352,915.16 and 222,950,496.72

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Solution

The fourth proportional to 387,994,813.68, 535,352,915.16 and 222,950,496.72 is: 307,625,757.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,994,813.68 : 535,352,915.16 = 222,950,496.72 : x
  2. Step 2: Convert to fraction form
    387,994,813.68/535,352,915.16 = 222,950,496.72/x
  3. Step 3: Cross multiply
    387,994,813.68x = 535,352,915.16 × 222,950,496.72
  4. Step 4: Simplify right side
    387,994,813.68x = 119,357,198,355,422,016
  5. Step 5: Solve for x
    x = 119,357,198,355,422,016/387,994,813.68
  6. Step 6: Final answer
    x = 307,625,757.22

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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.