Home / 156,118,940.96-215,444,391.73-85,543,336.24

Finding the Fourth Proportional to 156,118,940.96, 215,444,391.73 and 85,543,336.24

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Solution

The fourth proportional to 156,118,940.96, 215,444,391.73 and 85,543,336.24 is: 118,049,942.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,118,940.96 : 215,444,391.73 = 85,543,336.24 : x
  2. Step 2: Convert to fraction form
    156,118,940.96/215,444,391.73 = 85,543,336.24/x
  3. Step 3: Cross multiply
    156,118,940.96x = 215,444,391.73 × 85,543,336.24
  4. Step 4: Simplify right side
    156,118,940.96x = 18,429,832,042,029,196
  5. Step 5: Solve for x
    x = 18,429,832,042,029,196/156,118,940.96
  6. Step 6: Final answer
    x = 118,049,942.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.