Home / 278,773,143.72-384,755,091.21-161,363,210.37

Finding the Fourth Proportional to 278,773,143.72, 384,755,091.21 and 161,363,210.37

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Solution

The fourth proportional to 278,773,143.72, 384,755,091.21 and 161,363,210.37 is: 222,709,102.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,773,143.72 : 384,755,091.21 = 161,363,210.37 : x
  2. Step 2: Convert to fraction form
    278,773,143.72/384,755,091.21 = 161,363,210.37/x
  3. Step 3: Cross multiply
    278,773,143.72x = 384,755,091.21 × 161,363,210.37
  4. Step 4: Simplify right side
    278,773,143.72x = 62,085,316,723,847,768
  5. Step 5: Solve for x
    x = 62,085,316,723,847,768/278,773,143.72
  6. Step 6: Final answer
    x = 222,709,102.80

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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.