Home / 1,638,752,672.40-2,458,129,008.60-1,611,542,893.20

Finding the Fourth Proportional to 1,638,752,672.40, 2,458,129,008.60 and 1,611,542,893.20

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Solution

The fourth proportional to 1,638,752,672.40, 2,458,129,008.60 and 1,611,542,893.20 is: 2,417,314,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,752,672.40 : 2,458,129,008.60 = 1,611,542,893.20 : x
  2. Step 2: Convert to fraction form
    1,638,752,672.40/2,458,129,008.60 = 1,611,542,893.20/x
  3. Step 3: Cross multiply
    1,638,752,672.40x = 2,458,129,008.60 × 1,611,542,893.20
  4. Step 4: Simplify right side
    1,638,752,672.40x = 3,961,380,334,378,091,520
  5. Step 5: Solve for x
    x = 3,961,380,334,378,091,520/1,638,752,672.40
  6. Step 6: Final answer
    x = 2,417,314,339.80

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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.