Home / 1,691,171,990.25-2,333,812,574.03-938,598,793.53

Finding the Fourth Proportional to 1,691,171,990.25, 2,333,812,574.03 and 938,598,793.53

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Solution

The fourth proportional to 1,691,171,990.25, 2,333,812,574.03 and 938,598,793.53 is: 1,295,263,686.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691,171,990.25 : 2,333,812,574.03 = 938,598,793.53 : x
  2. Step 2: Convert to fraction form
    1,691,171,990.25/2,333,812,574.03 = 938,598,793.53/x
  3. Step 3: Cross multiply
    1,691,171,990.25x = 2,333,812,574.03 × 938,598,793.53
  4. Step 4: Simplify right side
    1,691,171,990.25x = 2,190,513,666,305,008,896
  5. Step 5: Solve for x
    x = 2,190,513,666,305,008,896/1,691,171,990.25
  6. Step 6: Final answer
    x = 1,295,263,686.33

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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.