Home / 885,743,998.20-1,328,615,997.30-472,495,476.60

Finding the Fourth Proportional to 885,743,998.20, 1,328,615,997.30 and 472,495,476.60

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Solution

The fourth proportional to 885,743,998.20, 1,328,615,997.30 and 472,495,476.60 is: 708,743,214.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,743,998.20 : 1,328,615,997.30 = 472,495,476.60 : x
  2. Step 2: Convert to fraction form
    885,743,998.20/1,328,615,997.30 = 472,495,476.60/x
  3. Step 3: Cross multiply
    885,743,998.20x = 1,328,615,997.30 × 472,495,476.60
  4. Step 4: Simplify right side
    885,743,998.20x = 627,765,048,862,647,808
  5. Step 5: Solve for x
    x = 627,765,048,862,647,808/885,743,998.20
  6. Step 6: Final answer
    x = 708,743,214.90

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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.