Home / 1,179,489,908.21-1,627,730,665.82-643,676,169.17

Finding the Fourth Proportional to 1,179,489,908.21, 1,627,730,665.82 and 643,676,169.17

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Solution

The fourth proportional to 1,179,489,908.21, 1,627,730,665.82 and 643,676,169.17 is: 888,291,991.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,489,908.21 : 1,627,730,665.82 = 643,676,169.17 : x
  2. Step 2: Convert to fraction form
    1,179,489,908.21/1,627,730,665.82 = 643,676,169.17/x
  3. Step 3: Cross multiply
    1,179,489,908.21x = 1,627,730,665.82 × 643,676,169.17
  4. Step 4: Simplify right side
    1,179,489,908.21x = 1,047,731,439,418,783,616
  5. Step 5: Solve for x
    x = 1,047,731,439,418,783,616/1,179,489,908.21
  6. Step 6: Final answer
    x = 888,291,991.42

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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.