Home / 1,986,367,803.21-2,978,517,121.38-936,824,204.13

Finding the Fourth Proportional to 1,986,367,803.21, 2,978,517,121.38 and 936,824,204.13

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Solution

The fourth proportional to 1,986,367,803.21, 2,978,517,121.38 and 936,824,204.13 is: 1,404,748,368.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,367,803.21 : 2,978,517,121.38 = 936,824,204.13 : x
  2. Step 2: Convert to fraction form
    1,986,367,803.21/2,978,517,121.38 = 936,824,204.13/x
  3. Step 3: Cross multiply
    1,986,367,803.21x = 2,978,517,121.38 × 936,824,204.13
  4. Step 4: Simplify right side
    1,986,367,803.21x = 2,790,346,931,713,227,776
  5. Step 5: Solve for x
    x = 2,790,346,931,713,227,776/1,986,367,803.21
  6. Step 6: Final answer
    x = 1,404,748,368.96

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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.