Home / 129,224,537.36-193,794,864.24-42,939,786.32

Finding the Fourth Proportional to 129,224,537.36, 193,794,864.24 and 42,939,786.32

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Solution

The fourth proportional to 129,224,537.36, 193,794,864.24 and 42,939,786.32 is: 64,395,742.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,224,537.36 : 193,794,864.24 = 42,939,786.32 : x
  2. Step 2: Convert to fraction form
    129,224,537.36/193,794,864.24 = 42,939,786.32/x
  3. Step 3: Cross multiply
    129,224,537.36x = 193,794,864.24 × 42,939,786.32
  4. Step 4: Simplify right side
    129,224,537.36x = 8,321,510,060,379,010
  5. Step 5: Solve for x
    x = 8,321,510,060,379,010/129,224,537.36
  6. Step 6: Final answer
    x = 64,395,742.72

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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.