Home / 1,120,367,968.10-1,679,418,211.35-660,069,203.30

Finding the Fourth Proportional to 1,120,367,968.10, 1,679,418,211.35 and 660,069,203.30

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Solution

The fourth proportional to 1,120,367,968.10, 1,679,418,211.35 and 660,069,203.30 is: 989,435,857.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,367,968.10 : 1,679,418,211.35 = 660,069,203.30 : x
  2. Step 2: Convert to fraction form
    1,120,367,968.10/1,679,418,211.35 = 660,069,203.30/x
  3. Step 3: Cross multiply
    1,120,367,968.10x = 1,679,418,211.35 × 660,069,203.30
  4. Step 4: Simplify right side
    1,120,367,968.10x = 1,108,532,240,773,305,344
  5. Step 5: Solve for x
    x = 1,108,532,240,773,305,344/1,120,367,968.10
  6. Step 6: Final answer
    x = 989,435,857.09

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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.