Home / 538,141,201.70-807,211,802.55-129,197,352.20

Finding the Fourth Proportional to 538,141,201.70, 807,211,802.55 and 129,197,352.20

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Solution

The fourth proportional to 538,141,201.70, 807,211,802.55 and 129,197,352.20 is: 193,796,028.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,141,201.70 : 807,211,802.55 = 129,197,352.20 : x
  2. Step 2: Convert to fraction form
    538,141,201.70/807,211,802.55 = 129,197,352.20/x
  3. Step 3: Cross multiply
    538,141,201.70x = 807,211,802.55 × 129,197,352.20
  4. Step 4: Simplify right side
    538,141,201.70x = 104,289,627,554,049,200
  5. Step 5: Solve for x
    x = 104,289,627,554,049,200/538,141,201.70
  6. Step 6: Final answer
    x = 193,796,028.30

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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.