Home / 305,552,189.88-421,672,207.14-171,613,709.46

Finding the Fourth Proportional to 305,552,189.88, 421,672,207.14 and 171,613,709.46

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Solution

The fourth proportional to 305,552,189.88, 421,672,207.14 and 171,613,709.46 is: 236,832,639.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,552,189.88 : 421,672,207.14 = 171,613,709.46 : x
  2. Step 2: Convert to fraction form
    305,552,189.88/421,672,207.14 = 171,613,709.46/x
  3. Step 3: Cross multiply
    305,552,189.88x = 421,672,207.14 × 171,613,709.46
  4. Step 4: Simplify right side
    305,552,189.88x = 72,364,731,643,480,896
  5. Step 5: Solve for x
    x = 72,364,731,643,480,896/305,552,189.88
  6. Step 6: Final answer
    x = 236,832,639.53

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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.