Home / 681,889,097,012.40-941,012,822,115-388,928,859,079.38

Finding the Fourth Proportional to 681,889,097,012.40, 941,012,822,115 and 388,928,859,079.38

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Solution

The fourth proportional to 681,889,097,012.40, 941,012,822,115 and 388,928,859,079.38 is: 536,725,172,594.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,889,097,012.40 : 941,012,822,115 = 388,928,859,079.38 : x
  2. Step 2: Convert to fraction form
    681,889,097,012.40/941,012,822,115 = 388,928,859,079.38/x
  3. Step 3: Cross multiply
    681,889,097,012.40x = 941,012,822,115 × 388,928,859,079.38
  4. Step 4: Simplify right side
    681,889,097,012.40x = 365,987,043,284,254,524,964,864
  5. Step 5: Solve for x
    x = 365,987,043,284,254,524,964,864/681,889,097,012.40
  6. Step 6: Final answer
    x = 536,725,172,594.45

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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.