Home / 917,982,107.10-1,376,222,844.60-427,001,481.90

Finding the Fourth Proportional to 917,982,107.10, 1,376,222,844.60 and 427,001,481.90

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Solution

The fourth proportional to 917,982,107.10, 1,376,222,844.60 and 427,001,481.90 is: 640,153,211.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,982,107.10 : 1,376,222,844.60 = 427,001,481.90 : x
  2. Step 2: Convert to fraction form
    917,982,107.10/1,376,222,844.60 = 427,001,481.90/x
  3. Step 3: Cross multiply
    917,982,107.10x = 1,376,222,844.60 × 427,001,481.90
  4. Step 4: Simplify right side
    917,982,107.10x = 587,649,194,068,833,280
  5. Step 5: Solve for x
    x = 587,649,194,068,833,280/917,982,107.10
  6. Step 6: Final answer
    x = 640,153,211.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.