Home / 209,832,790.19-289,569,529.41-115,744,814.75

Finding the Fourth Proportional to 209,832,790.19, 289,569,529.41 and 115,744,814.75

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Solution

The fourth proportional to 209,832,790.19, 289,569,529.41 and 115,744,814.75 is: 159,727,998.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,832,790.19 : 289,569,529.41 = 115,744,814.75 : x
  2. Step 2: Convert to fraction form
    209,832,790.19/289,569,529.41 = 115,744,814.75/x
  3. Step 3: Cross multiply
    209,832,790.19x = 289,569,529.41 × 115,744,814.75
  4. Step 4: Simplify right side
    209,832,790.19x = 33,516,171,538,805,128
  5. Step 5: Solve for x
    x = 33,516,171,538,805,128/209,832,790.19
  6. Step 6: Final answer
    x = 159,727,998.22

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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.