Home / 101,467,537.80-151,949,364.30-81,312,145.80

Finding the Fourth Proportional to 101,467,537.80, 151,949,364.30 and 81,312,145.80

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Solution

The fourth proportional to 101,467,537.80, 151,949,364.30 and 81,312,145.80 is: 121,766,321.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,467,537.80 : 151,949,364.30 = 81,312,145.80 : x
  2. Step 2: Convert to fraction form
    101,467,537.80/151,949,364.30 = 81,312,145.80/x
  3. Step 3: Cross multiply
    101,467,537.80x = 151,949,364.30 × 81,312,145.80
  4. Step 4: Simplify right side
    101,467,537.80x = 12,355,328,864,178,916
  5. Step 5: Solve for x
    x = 12,355,328,864,178,916/101,467,537.80
  6. Step 6: Final answer
    x = 121,766,321.84

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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.