Home / 215,221,843.89-322,883,992.35-69,655,405.44

Finding the Fourth Proportional to 215,221,843.89, 322,883,992.35 and 69,655,405.44

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Solution

The fourth proportional to 215,221,843.89, 322,883,992.35 and 69,655,405.44 is: 104,499,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,221,843.89 : 322,883,992.35 = 69,655,405.44 : x
  2. Step 2: Convert to fraction form
    215,221,843.89/322,883,992.35 = 69,655,405.44/x
  3. Step 3: Cross multiply
    215,221,843.89x = 322,883,992.35 × 69,655,405.44
  4. Step 4: Simplify right side
    215,221,843.89x = 22,490,615,397,225,108
  5. Step 5: Solve for x
    x = 22,490,615,397,225,108/215,221,843.89
  6. Step 6: Final answer
    x = 104,499,687.35

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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.