Home / 138,813,614.28-191,451,089.94-122,032,473.24

Finding the Fourth Proportional to 138,813,614.28, 191,451,089.94 and 122,032,473.24

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Solution

The fourth proportional to 138,813,614.28, 191,451,089.94 and 122,032,473.24 is: 168,306,618.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,813,614.28 : 191,451,089.94 = 122,032,473.24 : x
  2. Step 2: Convert to fraction form
    138,813,614.28/191,451,089.94 = 122,032,473.24/x
  3. Step 3: Cross multiply
    138,813,614.28x = 191,451,089.94 × 122,032,473.24
  4. Step 4: Simplify right side
    138,813,614.28x = 23,363,250,009,871,880
  5. Step 5: Solve for x
    x = 23,363,250,009,871,880/138,813,614.28
  6. Step 6: Final answer
    x = 168,306,618.42

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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.