Home / 231,420,978,902.58-347,176,172,010.26-87,988,854,967.21

Finding the Fourth Proportional to 231,420,978,902.58, 347,176,172,010.26 and 87,988,854,967.21

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Solution

The fourth proportional to 231,420,978,902.58, 347,176,172,010.26 and 87,988,854,967.21 is: 132,000,279,282.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,420,978,902.58 : 347,176,172,010.26 = 87,988,854,967.21 : x
  2. Step 2: Convert to fraction form
    231,420,978,902.58/347,176,172,010.26 = 87,988,854,967.21/x
  3. Step 3: Cross multiply
    231,420,978,902.58x = 347,176,172,010.26 × 87,988,854,967.21
  4. Step 4: Simplify right side
    231,420,978,902.58x = 30,547,633,847,081,921,150,976
  5. Step 5: Solve for x
    x = 30,547,633,847,081,921,150,976/231,420,978,902.58
  6. Step 6: Final answer
    x = 132,000,279,282.98

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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.