Home / 873,839,375.97-1,310,770,422.81-291,573,621.51

Finding the Fourth Proportional to 873,839,375.97, 1,310,770,422.81 and 291,573,621.51

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Solution

The fourth proportional to 873,839,375.97, 1,310,770,422.81 and 291,573,621.51 is: 437,364,222.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,839,375.97 : 1,310,770,422.81 = 291,573,621.51 : x
  2. Step 2: Convert to fraction form
    873,839,375.97/1,310,770,422.81 = 291,573,621.51/x
  3. Step 3: Cross multiply
    873,839,375.97x = 1,310,770,422.81 × 291,573,621.51
  4. Step 4: Simplify right side
    873,839,375.97x = 382,186,079,141,517,888
  5. Step 5: Solve for x
    x = 382,186,079,141,517,888/873,839,375.97
  6. Step 6: Final answer
    x = 437,364,222.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.