Home / 457,083,669.60-685,625,504.40-319,334,162.40

Finding the Fourth Proportional to 457,083,669.60, 685,625,504.40 and 319,334,162.40

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Solution

The fourth proportional to 457,083,669.60, 685,625,504.40 and 319,334,162.40 is: 479,001,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,083,669.60 : 685,625,504.40 = 319,334,162.40 : x
  2. Step 2: Convert to fraction form
    457,083,669.60/685,625,504.40 = 319,334,162.40/x
  3. Step 3: Cross multiply
    457,083,669.60x = 685,625,504.40 × 319,334,162.40
  4. Step 4: Simplify right side
    457,083,669.60x = 218,943,646,167,651,488
  5. Step 5: Solve for x
    x = 218,943,646,167,651,488/457,083,669.60
  6. Step 6: Final answer
    x = 479,001,243.60

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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.