Home / 715,916,868.58-987,405,583.48-465,102,072.45

Finding the Fourth Proportional to 715,916,868.58, 987,405,583.48 and 465,102,072.45

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Solution

The fourth proportional to 715,916,868.58, 987,405,583.48 and 465,102,072.45 is: 641,477,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,916,868.58 : 987,405,583.48 = 465,102,072.45 : x
  2. Step 2: Convert to fraction form
    715,916,868.58/987,405,583.48 = 465,102,072.45/x
  3. Step 3: Cross multiply
    715,916,868.58x = 987,405,583.48 × 465,102,072.45
  4. Step 4: Simplify right side
    715,916,868.58x = 459,244,383,224,086,720
  5. Step 5: Solve for x
    x = 459,244,383,224,086,720/715,916,868.58
  6. Step 6: Final answer
    x = 641,477,248.80

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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.