Home / 205,320,569.18-308,019,697.06-82,508,446.94

Finding the Fourth Proportional to 205,320,569.18, 308,019,697.06 and 82,508,446.94

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Solution

The fourth proportional to 205,320,569.18, 308,019,697.06 and 82,508,446.94 is: 123,778,279.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,320,569.18 : 308,019,697.06 = 82,508,446.94 : x
  2. Step 2: Convert to fraction form
    205,320,569.18/308,019,697.06 = 82,508,446.94/x
  3. Step 3: Cross multiply
    205,320,569.18x = 308,019,697.06 × 82,508,446.94
  4. Step 4: Simplify right side
    205,320,569.18x = 25,414,226,831,349,884
  5. Step 5: Solve for x
    x = 25,414,226,831,349,884/205,320,569.18
  6. Step 6: Final answer
    x = 123,778,279.66

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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.