Home / 215,170,983.90-322,644,345.93-76,943,304.54

Finding the Fourth Proportional to 215,170,983.90, 322,644,345.93 and 76,943,304.54

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Solution

The fourth proportional to 215,170,983.90, 322,644,345.93 and 76,943,304.54 is: 115,374,860.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,170,983.90 : 322,644,345.93 = 76,943,304.54 : x
  2. Step 2: Convert to fraction form
    215,170,983.90/322,644,345.93 = 76,943,304.54/x
  3. Step 3: Cross multiply
    215,170,983.90x = 322,644,345.93 × 76,943,304.54
  4. Step 4: Simplify right side
    215,170,983.90x = 24,825,322,167,001,104
  5. Step 5: Solve for x
    x = 24,825,322,167,001,104/215,170,983.90
  6. Step 6: Final answer
    x = 115,374,860.11

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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.