Home / 613,628,318.51-920,442,489.94-147,289,742.43

Finding the Fourth Proportional to 613,628,318.51, 920,442,489.94 and 147,289,742.43

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Solution

The fourth proportional to 613,628,318.51, 920,442,489.94 and 147,289,742.43 is: 220,934,616.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,628,318.51 : 920,442,489.94 = 147,289,742.43 : x
  2. Step 2: Convert to fraction form
    613,628,318.51/920,442,489.94 = 147,289,742.43/x
  3. Step 3: Cross multiply
    613,628,318.51x = 920,442,489.94 × 147,289,742.43
  4. Step 4: Simplify right side
    613,628,318.51x = 135,571,737,261,192,192
  5. Step 5: Solve for x
    x = 135,571,737,261,192,192/613,628,318.51
  6. Step 6: Final answer
    x = 220,934,616.56

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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.