Home / 305,558,552.89-421,680,977.03-171,620,036.11

Finding the Fourth Proportional to 305,558,552.89, 421,680,977.03 and 171,620,036.11

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Solution

The fourth proportional to 305,558,552.89, 421,680,977.03 and 171,620,036.11 is: 236,841,364.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,558,552.89 : 421,680,977.03 = 171,620,036.11 : x
  2. Step 2: Convert to fraction form
    305,558,552.89/421,680,977.03 = 171,620,036.11/x
  3. Step 3: Cross multiply
    305,558,552.89x = 421,680,977.03 × 171,620,036.11
  4. Step 4: Simplify right side
    305,558,552.89x = 72,368,904,503,109,328
  5. Step 5: Solve for x
    x = 72,368,904,503,109,328/305,558,552.89
  6. Step 6: Final answer
    x = 236,841,364.18

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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.