Home / 309,371,201.82-428,056,466.29-269,761,328.68

Finding the Fourth Proportional to 309,371,201.82, 428,056,466.29 and 269,761,328.68

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Solution

The fourth proportional to 309,371,201.82, 428,056,466.29 and 269,761,328.68 is: 373,250,905.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,371,201.82 : 428,056,466.29 = 269,761,328.68 : x
  2. Step 2: Convert to fraction form
    309,371,201.82/428,056,466.29 = 269,761,328.68/x
  3. Step 3: Cross multiply
    309,371,201.82x = 428,056,466.29 × 269,761,328.68
  4. Step 4: Simplify right side
    309,371,201.82x = 115,473,081,094,711,504
  5. Step 5: Solve for x
    x = 115,473,081,094,711,504/309,371,201.82
  6. Step 6: Final answer
    x = 373,250,905.11

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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.