Home / 1,227,205,461.74-1,693,548,709.26-691,363,556.18

Finding the Fourth Proportional to 1,227,205,461.74, 1,693,548,709.26 and 691,363,556.18

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Solution

The fourth proportional to 1,227,205,461.74, 1,693,548,709.26 and 691,363,556.18 is: 954,084,621.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,205,461.74 : 1,693,548,709.26 = 691,363,556.18 : x
  2. Step 2: Convert to fraction form
    1,227,205,461.74/1,693,548,709.26 = 691,363,556.18/x
  3. Step 3: Cross multiply
    1,227,205,461.74x = 1,693,548,709.26 × 691,363,556.18
  4. Step 4: Simplify right side
    1,227,205,461.74x = 1,170,857,858,198,042,368
  5. Step 5: Solve for x
    x = 1,170,857,858,198,042,368/1,227,205,461.74
  6. Step 6: Final answer
    x = 954,084,621.28

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Double scale
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1.5x scale

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.