Home / 112,343,999.40-168,515,999.10-79,927,410.60

Finding the Fourth Proportional to 112,343,999.40, 168,515,999.10 and 79,927,410.60

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Solution

The fourth proportional to 112,343,999.40, 168,515,999.10 and 79,927,410.60 is: 119,891,115.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,343,999.40 : 168,515,999.10 = 79,927,410.60 : x
  2. Step 2: Convert to fraction form
    112,343,999.40/168,515,999.10 = 79,927,410.60/x
  3. Step 3: Cross multiply
    112,343,999.40x = 168,515,999.10 × 79,927,410.60
  4. Step 4: Simplify right side
    112,343,999.40x = 13,469,047,452,734,928
  5. Step 5: Solve for x
    x = 13,469,047,452,734,928/112,343,999.40
  6. Step 6: Final answer
    x = 119,891,115.90

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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.