Home / 647,388,623.70-971,082,935.55-238,391,630.10

Finding the Fourth Proportional to 647,388,623.70, 971,082,935.55 and 238,391,630.10

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Solution

The fourth proportional to 647,388,623.70, 971,082,935.55 and 238,391,630.10 is: 357,587,445.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,388,623.70 : 971,082,935.55 = 238,391,630.10 : x
  2. Step 2: Convert to fraction form
    647,388,623.70/971,082,935.55 = 238,391,630.10/x
  3. Step 3: Cross multiply
    647,388,623.70x = 971,082,935.55 × 238,391,630.10
  4. Step 4: Simplify right side
    647,388,623.70x = 231,498,043,968,057,728
  5. Step 5: Solve for x
    x = 231,498,043,968,057,728/647,388,623.70
  6. Step 6: Final answer
    x = 357,587,445.15

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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.