Home / 256,909,584.39-354,535,568.55-139,434,914.62

Finding the Fourth Proportional to 256,909,584.39, 354,535,568.55 and 139,434,914.62

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Solution

The fourth proportional to 256,909,584.39, 354,535,568.55 and 139,434,914.62 is: 192,420,367.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,909,584.39 : 354,535,568.55 = 139,434,914.62 : x
  2. Step 2: Convert to fraction form
    256,909,584.39/354,535,568.55 = 139,434,914.62/x
  3. Step 3: Cross multiply
    256,909,584.39x = 354,535,568.55 × 139,434,914.62
  4. Step 4: Simplify right side
    256,909,584.39x = 49,434,636,732,355,032
  5. Step 5: Solve for x
    x = 49,434,636,732,355,032/256,909,584.39
  6. Step 6: Final answer
    x = 192,420,367.85

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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.