Home / 87,289,824-120,459,964.80-48,658,656

Finding the Fourth Proportional to 87,289,824, 120,459,964.80 and 48,658,656

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Solution

The fourth proportional to 87,289,824, 120,459,964.80 and 48,658,656 is: 67,148,949.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,289,824 : 120,459,964.80 = 48,658,656 : x
  2. Step 2: Convert to fraction form
    87,289,824/120,459,964.80 = 48,658,656/x
  3. Step 3: Cross multiply
    87,289,824x = 120,459,964.80 × 48,658,656
  4. Step 4: Simplify right side
    87,289,824x = 5,861,419,988,975,309
  5. Step 5: Solve for x
    x = 5,861,419,988,975,309/87,289,824
  6. Step 6: Final answer
    x = 67,148,949.56

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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.