Home / 222,602,584.32-307,145,565.36-128,515,100.85

Finding the Fourth Proportional to 222,602,584.32, 307,145,565.36 and 128,515,100.85

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Solution

The fourth proportional to 222,602,584.32, 307,145,565.36 and 128,515,100.85 is: 177,324,281.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,602,584.32 : 307,145,565.36 = 128,515,100.85 : x
  2. Step 2: Convert to fraction form
    222,602,584.32/307,145,565.36 = 128,515,100.85/x
  3. Step 3: Cross multiply
    222,602,584.32x = 307,145,565.36 × 128,515,100.85
  4. Step 4: Simplify right side
    222,602,584.32x = 39,472,843,307,870,664
  5. Step 5: Solve for x
    x = 39,472,843,307,870,664/222,602,584.32
  6. Step 6: Final answer
    x = 177,324,281.42

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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.