Home / 112,291,290.80-168,436,936.20-39,519,303.20

Finding the Fourth Proportional to 112,291,290.80, 168,436,936.20 and 39,519,303.20

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Solution

The fourth proportional to 112,291,290.80, 168,436,936.20 and 39,519,303.20 is: 59,278,954.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,291,290.80 : 168,436,936.20 = 39,519,303.20 : x
  2. Step 2: Convert to fraction form
    112,291,290.80/168,436,936.20 = 39,519,303.20/x
  3. Step 3: Cross multiply
    112,291,290.80x = 168,436,936.20 × 39,519,303.20
  4. Step 4: Simplify right side
    112,291,290.80x = 6,656,510,351,766,856
  5. Step 5: Solve for x
    x = 6,656,510,351,766,856/112,291,290.80
  6. Step 6: Final answer
    x = 59,278,954.80

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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.