Home / 1,171,995,195.97-1,617,311,523.60-663,346,988.39

Finding the Fourth Proportional to 1,171,995,195.97, 1,617,311,523.60 and 663,346,988.39

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Solution

The fourth proportional to 1,171,995,195.97, 1,617,311,523.60 and 663,346,988.39 is: 915,395,158.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,995,195.97 : 1,617,311,523.60 = 663,346,988.39 : x
  2. Step 2: Convert to fraction form
    1,171,995,195.97/1,617,311,523.60 = 663,346,988.39/x
  3. Step 3: Cross multiply
    1,171,995,195.97x = 1,617,311,523.60 × 663,346,988.39
  4. Step 4: Simplify right side
    1,171,995,195.97x = 1,072,838,728,472,545,664
  5. Step 5: Solve for x
    x = 1,072,838,728,472,545,664/1,171,995,195.97
  6. Step 6: Final answer
    x = 915,395,158.75

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Double scale
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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.