Home / 154,962,556.14-213,858,034.74-85,347,921

Finding the Fourth Proportional to 154,962,556.14, 213,858,034.74 and 85,347,921

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Solution

The fourth proportional to 154,962,556.14, 213,858,034.74 and 85,347,921 is: 117,785,477.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,962,556.14 : 213,858,034.74 = 85,347,921 : x
  2. Step 2: Convert to fraction form
    154,962,556.14/213,858,034.74 = 85,347,921/x
  3. Step 3: Cross multiply
    154,962,556.14x = 213,858,034.74 × 85,347,921
  4. Step 4: Simplify right side
    154,962,556.14x = 18,252,338,654,204,776
  5. Step 5: Solve for x
    x = 18,252,338,654,204,776/154,962,556.14
  6. Step 6: Final answer
    x = 117,785,477.40

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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.