Home / 309,717,115.25-427,418,429.76-168,597,436.60

Finding the Fourth Proportional to 309,717,115.25, 427,418,429.76 and 168,597,436.60

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Solution

The fourth proportional to 309,717,115.25, 427,418,429.76 and 168,597,436.60 is: 232,669,258.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,717,115.25 : 427,418,429.76 = 168,597,436.60 : x
  2. Step 2: Convert to fraction form
    309,717,115.25/427,418,429.76 = 168,597,436.60/x
  3. Step 3: Cross multiply
    309,717,115.25x = 427,418,429.76 × 168,597,436.60
  4. Step 4: Simplify right side
    309,717,115.25x = 72,061,651,610,153,072
  5. Step 5: Solve for x
    x = 72,061,651,610,153,072/309,717,115.25
  6. Step 6: Final answer
    x = 232,669,258.69

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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.