Home / 404,267,556.78-557,890,909.20-218,628,572.40

Finding the Fourth Proportional to 404,267,556.78, 557,890,909.20 and 218,628,572.40

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Solution

The fourth proportional to 404,267,556.78, 557,890,909.20 and 218,628,572.40 is: 301,708,338.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,267,556.78 : 557,890,909.20 = 218,628,572.40 : x
  2. Step 2: Convert to fraction form
    404,267,556.78/557,890,909.20 = 218,628,572.40/x
  3. Step 3: Cross multiply
    404,267,556.78x = 557,890,909.20 × 218,628,572.40
  4. Step 4: Simplify right side
    404,267,556.78x = 121,970,893,033,334,032
  5. Step 5: Solve for x
    x = 121,970,893,033,334,032/404,267,556.78
  6. Step 6: Final answer
    x = 301,708,338.92

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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.