Home / 228,963,720.70-315,941,187.99-154,785,644.38

Finding the Fourth Proportional to 228,963,720.70, 315,941,187.99 and 154,785,644.38

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Solution

The fourth proportional to 228,963,720.70, 315,941,187.99 and 154,785,644.38 is: 213,584,755.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,963,720.70 : 315,941,187.99 = 154,785,644.38 : x
  2. Step 2: Convert to fraction form
    228,963,720.70/315,941,187.99 = 154,785,644.38/x
  3. Step 3: Cross multiply
    228,963,720.70x = 315,941,187.99 × 154,785,644.38
  4. Step 4: Simplify right side
    228,963,720.70x = 48,903,160,369,214,864
  5. Step 5: Solve for x
    x = 48,903,160,369,214,864/228,963,720.70
  6. Step 6: Final answer
    x = 213,584,755.78

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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.