Home / 285,164,676.72-393,517,071.90-161,402,696.64

Finding the Fourth Proportional to 285,164,676.72, 393,517,071.90 and 161,402,696.64

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Solution

The fourth proportional to 285,164,676.72, 393,517,071.90 and 161,402,696.64 is: 222,729,958.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,164,676.72 : 393,517,071.90 = 161,402,696.64 : x
  2. Step 2: Convert to fraction form
    285,164,676.72/393,517,071.90 = 161,402,696.64/x
  3. Step 3: Cross multiply
    285,164,676.72x = 393,517,071.90 × 161,402,696.64
  4. Step 4: Simplify right side
    285,164,676.72x = 63,514,716,578,536,760
  5. Step 5: Solve for x
    x = 63,514,716,578,536,760/285,164,676.72
  6. Step 6: Final answer
    x = 222,729,958.38

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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.