Home / 278,773,143.22-384,755,090.52-161,363,209.87

Finding the Fourth Proportional to 278,773,143.22, 384,755,090.52 and 161,363,209.87

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Solution

The fourth proportional to 278,773,143.22, 384,755,090.52 and 161,363,209.87 is: 222,709,102.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,773,143.22 : 384,755,090.52 = 161,363,209.87 : x
  2. Step 2: Convert to fraction form
    278,773,143.22/384,755,090.52 = 161,363,209.87/x
  3. Step 3: Cross multiply
    278,773,143.22x = 384,755,090.52 × 161,363,209.87
  4. Step 4: Simplify right side
    278,773,143.22x = 62,085,316,420,129,608
  5. Step 5: Solve for x
    x = 62,085,316,420,129,608/278,773,143.22
  6. Step 6: Final answer
    x = 222,709,102.11

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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.