Home / 248,212,157.31-372,059,601.33-138,877,028.91

Finding the Fourth Proportional to 248,212,157.31, 372,059,601.33 and 138,877,028.91

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Solution

The fourth proportional to 248,212,157.31, 372,059,601.33 and 138,877,028.91 is: 208,170,834.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,212,157.31 : 372,059,601.33 = 138,877,028.91 : x
  2. Step 2: Convert to fraction form
    248,212,157.31/372,059,601.33 = 138,877,028.91/x
  3. Step 3: Cross multiply
    248,212,157.31x = 372,059,601.33 × 138,877,028.91
  4. Step 4: Simplify right side
    248,212,157.31x = 51,670,532,010,149,480
  5. Step 5: Solve for x
    x = 51,670,532,010,149,480/248,212,157.31
  6. Step 6: Final answer
    x = 208,170,834.86

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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.