Home / 521,962,988.27-783,292,611.56-189,969,905.64

Finding the Fourth Proportional to 521,962,988.27, 783,292,611.56 and 189,969,905.64

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Solution

The fourth proportional to 521,962,988.27, 783,292,611.56 and 189,969,905.64 is: 285,081,561.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,962,988.27 : 783,292,611.56 = 189,969,905.64 : x
  2. Step 2: Convert to fraction form
    521,962,988.27/783,292,611.56 = 189,969,905.64/x
  3. Step 3: Cross multiply
    521,962,988.27x = 783,292,611.56 × 189,969,905.64
  4. Step 4: Simplify right side
    521,962,988.27x = 148,802,023,505,612,512
  5. Step 5: Solve for x
    x = 148,802,023,505,612,512/521,962,988.27
  6. Step 6: Final answer
    x = 285,081,561.05

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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.