Home / 681,889,097,012.25-941,012,822,114.80-388,928,859,079.25

Finding the Fourth Proportional to 681,889,097,012.25, 941,012,822,114.80 and 388,928,859,079.25

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Solution

The fourth proportional to 681,889,097,012.25, 941,012,822,114.80 and 388,928,859,079.25 is: 536,725,172,594.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,889,097,012.25 : 941,012,822,114.80 = 388,928,859,079.25 : x
  2. Step 2: Convert to fraction form
    681,889,097,012.25/941,012,822,114.80 = 388,928,859,079.25/x
  3. Step 3: Cross multiply
    681,889,097,012.25x = 941,012,822,114.80 × 388,928,859,079.25
  4. Step 4: Simplify right side
    681,889,097,012.25x = 365,987,043,284,054,406,332,416
  5. Step 5: Solve for x
    x = 365,987,043,284,054,406,332,416/681,889,097,012.25
  6. Step 6: Final answer
    x = 536,725,172,594.28

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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.