Home / 209,645,922.06-289,324,316.24-115,559,856.80

Finding the Fourth Proportional to 209,645,922.06, 289,324,316.24 and 115,559,856.80

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Solution

The fourth proportional to 209,645,922.06, 289,324,316.24 and 115,559,856.80 is: 159,479,737.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,645,922.06 : 289,324,316.24 = 115,559,856.80 : x
  2. Step 2: Convert to fraction form
    209,645,922.06/289,324,316.24 = 115,559,856.80/x
  3. Step 3: Cross multiply
    209,645,922.06x = 289,324,316.24 × 115,559,856.80
  4. Step 4: Simplify right side
    209,645,922.06x = 33,434,276,552,946,208
  5. Step 5: Solve for x
    x = 33,434,276,552,946,208/209,645,922.06
  6. Step 6: Final answer
    x = 159,479,737.19

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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.