Home / 40,388,404.44-56,112,273.88-39,904,128.80

Finding the Fourth Proportional to 40,388,404.44, 56,112,273.88 and 39,904,128.80

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Solution

The fourth proportional to 40,388,404.44, 56,112,273.88 and 39,904,128.80 is: 55,439,461.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,388,404.44 : 56,112,273.88 = 39,904,128.80 : x
  2. Step 2: Convert to fraction form
    40,388,404.44/56,112,273.88 = 39,904,128.80/x
  3. Step 3: Cross multiply
    40,388,404.44x = 56,112,273.88 × 39,904,128.80
  4. Step 4: Simplify right side
    40,388,404.44x = 2,239,111,404,168,395.75
  5. Step 5: Solve for x
    x = 2,239,111,404,168,395.75/40,388,404.44
  6. Step 6: Final answer
    x = 55,439,461.78

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.