Home / 12,690,905,441.10-19,024,264,926.45-9,891,321,492.30

Finding the Fourth Proportional to 12,690,905,441.10, 19,024,264,926.45 and 9,891,321,492.30

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Solution

The fourth proportional to 12,690,905,441.10, 19,024,264,926.45 and 9,891,321,492.30 is: 14,827,556,742.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690,905,441.10 : 19,024,264,926.45 = 9,891,321,492.30 : x
  2. Step 2: Convert to fraction form
    12,690,905,441.10/19,024,264,926.45 = 9,891,321,492.30/x
  3. Step 3: Cross multiply
    12,690,905,441.10x = 19,024,264,926.45 × 9,891,321,492.30
  4. Step 4: Simplify right side
    12,690,905,441.10x = 188,175,120,542,203,969,536
  5. Step 5: Solve for x
    x = 188,175,120,542,203,969,536/12,690,905,441.10
  6. Step 6: Final answer
    x = 14,827,556,742.55

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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.