Home / 522,459,923.28-783,691,496.56-128,986,794.96

Finding the Fourth Proportional to 522,459,923.28, 783,691,496.56 and 128,986,794.96

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Solution

The fourth proportional to 522,459,923.28, 783,691,496.56 and 128,986,794.96 is: 193,480,590.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,459,923.28 : 783,691,496.56 = 128,986,794.96 : x
  2. Step 2: Convert to fraction form
    522,459,923.28/783,691,496.56 = 128,986,794.96/x
  3. Step 3: Cross multiply
    522,459,923.28x = 783,691,496.56 × 128,986,794.96
  4. Step 4: Simplify right side
    522,459,923.28x = 101,085,854,378,680,256
  5. Step 5: Solve for x
    x = 101,085,854,378,680,256/522,459,923.28
  6. Step 6: Final answer
    x = 193,480,590.33

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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.