Home / 1,236,843,847.40-1,855,489,719.90-621,880,442.60

Finding the Fourth Proportional to 1,236,843,847.40, 1,855,489,719.90 and 621,880,442.60

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Solution

The fourth proportional to 1,236,843,847.40, 1,855,489,719.90 and 621,880,442.60 is: 932,933,264.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,843,847.40 : 1,855,489,719.90 = 621,880,442.60 : x
  2. Step 2: Convert to fraction form
    1,236,843,847.40/1,855,489,719.90 = 621,880,442.60/x
  3. Step 3: Cross multiply
    1,236,843,847.40x = 1,855,489,719.90 × 621,880,442.60
  4. Step 4: Simplify right side
    1,236,843,847.40x = 1,153,892,768,251,162,112
  5. Step 5: Solve for x
    x = 1,153,892,768,251,162,112/1,236,843,847.40
  6. Step 6: Final answer
    x = 932,933,264.52

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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.