Home / 689,593,837.60-1,034,388,034.80-204,919,645.60

Finding the Fourth Proportional to 689,593,837.60, 1,034,388,034.80 and 204,919,645.60

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Solution

The fourth proportional to 689,593,837.60, 1,034,388,034.80 and 204,919,645.60 is: 307,378,659.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,593,837.60 : 1,034,388,034.80 = 204,919,645.60 : x
  2. Step 2: Convert to fraction form
    689,593,837.60/1,034,388,034.80 = 204,919,645.60/x
  3. Step 3: Cross multiply
    689,593,837.60x = 1,034,388,034.80 × 204,919,645.60
  4. Step 4: Simplify right side
    689,593,837.60x = 211,966,429,504,096,448
  5. Step 5: Solve for x
    x = 211,966,429,504,096,448/689,593,837.60
  6. Step 6: Final answer
    x = 307,378,659.65

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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.