Home / 797,490,808.48-1,100,491,399.20-445,039,137.28

Finding the Fourth Proportional to 797,490,808.48, 1,100,491,399.20 and 445,039,137.28

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Solution

The fourth proportional to 797,490,808.48, 1,100,491,399.20 and 445,039,137.28 is: 614,128,385.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    797,490,808.48 : 1,100,491,399.20 = 445,039,137.28 : x
  2. Step 2: Convert to fraction form
    797,490,808.48/1,100,491,399.20 = 445,039,137.28/x
  3. Step 3: Cross multiply
    797,490,808.48x = 1,100,491,399.20 × 445,039,137.28
  4. Step 4: Simplify right side
    797,490,808.48x = 489,761,742,884,028,096
  5. Step 5: Solve for x
    x = 489,761,742,884,028,096/797,490,808.48
  6. Step 6: Final answer
    x = 614,128,385.78

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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.