Home / 400,624,128.66-552,891,968.42-252,072,584.91

Finding the Fourth Proportional to 400,624,128.66, 552,891,968.42 and 252,072,584.91

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Solution

The fourth proportional to 400,624,128.66, 552,891,968.42 and 252,072,584.91 is: 347,879,465.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,624,128.66 : 552,891,968.42 = 252,072,584.91 : x
  2. Step 2: Convert to fraction form
    400,624,128.66/552,891,968.42 = 252,072,584.91/x
  3. Step 3: Cross multiply
    400,624,128.66x = 552,891,968.42 × 252,072,584.91
  4. Step 4: Simplify right side
    400,624,128.66x = 139,368,907,654,347,120
  5. Step 5: Solve for x
    x = 139,368,907,654,347,120/400,624,128.66
  6. Step 6: Final answer
    x = 347,879,465.27

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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.