Home / 112,478,910.20-168,718,365.30-39,695,112.80

Finding the Fourth Proportional to 112,478,910.20, 168,718,365.30 and 39,695,112.80

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Solution

The fourth proportional to 112,478,910.20, 168,718,365.30 and 39,695,112.80 is: 59,542,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,478,910.20 : 168,718,365.30 = 39,695,112.80 : x
  2. Step 2: Convert to fraction form
    112,478,910.20/168,718,365.30 = 39,695,112.80/x
  3. Step 3: Cross multiply
    112,478,910.20x = 168,718,365.30 × 39,695,112.80
  4. Step 4: Simplify right side
    112,478,910.20x = 6,697,294,542,015,106
  5. Step 5: Solve for x
    x = 6,697,294,542,015,106/112,478,910.20
  6. Step 6: Final answer
    x = 59,542,669.20

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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.