Home / 305,519,773.32-421,653,188.52-171,579,701.52

Finding the Fourth Proportional to 305,519,773.32, 421,653,188.52 and 171,579,701.52

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Solution

The fourth proportional to 305,519,773.32, 421,653,188.52 and 171,579,701.52 is: 236,800,150.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,519,773.32 : 421,653,188.52 = 171,579,701.52 : x
  2. Step 2: Convert to fraction form
    305,519,773.32/421,653,188.52 = 171,579,701.52/x
  3. Step 3: Cross multiply
    305,519,773.32x = 421,653,188.52 × 171,579,701.52
  4. Step 4: Simplify right side
    305,519,773.32x = 72,347,128,231,217,888
  5. Step 5: Solve for x
    x = 72,347,128,231,217,888/305,519,773.32
  6. Step 6: Final answer
    x = 236,800,150.27

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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.