Home / 112,345,399.40-168,518,099.10-79,928,810.60

Finding the Fourth Proportional to 112,345,399.40, 168,518,099.10 and 79,928,810.60

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Solution

The fourth proportional to 112,345,399.40, 168,518,099.10 and 79,928,810.60 is: 119,893,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,345,399.40 : 168,518,099.10 = 79,928,810.60 : x
  2. Step 2: Convert to fraction form
    112,345,399.40/168,518,099.10 = 79,928,810.60/x
  3. Step 3: Cross multiply
    112,345,399.40x = 168,518,099.10 × 79,928,810.60
  4. Step 4: Simplify right side
    112,345,399.40x = 13,469,451,225,635,928
  5. Step 5: Solve for x
    x = 13,469,451,225,635,928/112,345,399.40
  6. Step 6: Final answer
    x = 119,893,215.90

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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.