Home / 156,135,006.92-215,467,574.64-86,521,550.60

Finding the Fourth Proportional to 156,135,006.92, 215,467,574.64 and 86,521,550.60

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Solution

The fourth proportional to 156,135,006.92, 215,467,574.64 and 86,521,550.60 is: 119,400,440.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,135,006.92 : 215,467,574.64 = 86,521,550.60 : x
  2. Step 2: Convert to fraction form
    156,135,006.92/215,467,574.64 = 86,521,550.60/x
  3. Step 3: Cross multiply
    156,135,006.92x = 215,467,574.64 × 86,521,550.60
  4. Step 4: Simplify right side
    156,135,006.92x = 18,642,588,661,874,036
  5. Step 5: Solve for x
    x = 18,642,588,661,874,036/156,135,006.92
  6. Step 6: Final answer
    x = 119,400,440.87

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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.