Home / 172,650,078.20-258,933,645.30-99,709,124.60

Finding the Fourth Proportional to 172,650,078.20, 258,933,645.30 and 99,709,124.60

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Solution

The fourth proportional to 172,650,078.20, 258,933,645.30 and 99,709,124.60 is: 149,539,735.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,650,078.20 : 258,933,645.30 = 99,709,124.60 : x
  2. Step 2: Convert to fraction form
    172,650,078.20/258,933,645.30 = 99,709,124.60/x
  3. Step 3: Cross multiply
    172,650,078.20x = 258,933,645.30 × 99,709,124.60
  4. Step 4: Simplify right side
    172,650,078.20x = 25,818,047,102,349,904
  5. Step 5: Solve for x
    x = 25,818,047,102,349,904/172,650,078.20
  6. Step 6: Final answer
    x = 149,539,735.93

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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.