Home / 392,578,028.50-541,750,650.87-213,963,525.58

Finding the Fourth Proportional to 392,578,028.50, 541,750,650.87 and 213,963,525.58

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Solution

The fourth proportional to 392,578,028.50, 541,750,650.87 and 213,963,525.58 is: 295,265,834.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,578,028.50 : 541,750,650.87 = 213,963,525.58 : x
  2. Step 2: Convert to fraction form
    392,578,028.50/541,750,650.87 = 213,963,525.58/x
  3. Step 3: Cross multiply
    392,578,028.50x = 541,750,650.87 × 213,963,525.58
  4. Step 4: Simplify right side
    392,578,028.50x = 115,914,879,245,404,896
  5. Step 5: Solve for x
    x = 115,914,879,245,404,896/392,578,028.50
  6. Step 6: Final answer
    x = 295,265,834.64

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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.