Home / 209,952,025.20-289,733,976.36-117,132,552.12

Finding the Fourth Proportional to 209,952,025.20, 289,733,976.36 and 117,132,552.12

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Solution

The fourth proportional to 209,952,025.20, 289,733,976.36 and 117,132,552.12 is: 161,643,023.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,025.20 : 289,733,976.36 = 117,132,552.12 : x
  2. Step 2: Convert to fraction form
    209,952,025.20/289,733,976.36 = 117,132,552.12/x
  3. Step 3: Cross multiply
    209,952,025.20x = 289,733,976.36 × 117,132,552.12
  4. Step 4: Simplify right side
    209,952,025.20x = 33,937,280,086,922,552
  5. Step 5: Solve for x
    x = 33,937,280,086,922,552/209,952,025.20
  6. Step 6: Final answer
    x = 161,643,023.23

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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.