Home / 138,933,022.84-208,377,171.56-40,541,628.21

Finding the Fourth Proportional to 138,933,022.84, 208,377,171.56 and 40,541,628.21

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Solution

The fourth proportional to 138,933,022.84, 208,377,171.56 and 40,541,628.21 is: 60,805,916.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,933,022.84 : 208,377,171.56 = 40,541,628.21 : x
  2. Step 2: Convert to fraction form
    138,933,022.84/208,377,171.56 = 40,541,628.21/x
  3. Step 3: Cross multiply
    138,933,022.84x = 208,377,171.56 × 40,541,628.21
  4. Step 4: Simplify right side
    138,933,022.84x = 8,447,949,817,100,915
  5. Step 5: Solve for x
    x = 8,447,949,817,100,915/138,933,022.84
  6. Step 6: Final answer
    x = 60,805,916.73

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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.