Home / 209,219,802-288,725,982.96-115,144,780.56

Finding the Fourth Proportional to 209,219,802, 288,725,982.96 and 115,144,780.56

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Solution

The fourth proportional to 209,219,802, 288,725,982.96 and 115,144,780.56 is: 158,901,259.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,219,802 : 288,725,982.96 = 115,144,780.56 : x
  2. Step 2: Convert to fraction form
    209,219,802/288,725,982.96 = 115,144,780.56/x
  3. Step 3: Cross multiply
    209,219,802x = 288,725,982.96 × 115,144,780.56
  4. Step 4: Simplify right side
    209,219,802x = 33,245,289,949,899,496
  5. Step 5: Solve for x
    x = 33,245,289,949,899,496/209,219,802
  6. Step 6: Final answer
    x = 158,901,259.02

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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.