Home / 258,601,107.22-387,892,212.87-76,843,561.30

Finding the Fourth Proportional to 258,601,107.22, 387,892,212.87 and 76,843,561.30

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Solution

The fourth proportional to 258,601,107.22, 387,892,212.87 and 76,843,561.30 is: 115,262,534.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,601,107.22 : 387,892,212.87 = 76,843,561.30 : x
  2. Step 2: Convert to fraction form
    258,601,107.22/387,892,212.87 = 76,843,561.30/x
  3. Step 3: Cross multiply
    258,601,107.22x = 387,892,212.87 × 76,843,561.30
  4. Step 4: Simplify right side
    258,601,107.22x = 29,807,019,037,468,492
  5. Step 5: Solve for x
    x = 29,807,019,037,468,492/258,601,107.22
  6. Step 6: Final answer
    x = 115,262,534.48

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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.