Home / 12,690,905,445.60-19,024,264,933.20-9,891,321,496.80

Finding the Fourth Proportional to 12,690,905,445.60, 19,024,264,933.20 and 9,891,321,496.80

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Solution

The fourth proportional to 12,690,905,445.60, 19,024,264,933.20 and 9,891,321,496.80 is: 14,827,556,749.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690,905,445.60 : 19,024,264,933.20 = 9,891,321,496.80 : x
  2. Step 2: Convert to fraction form
    12,690,905,445.60/19,024,264,933.20 = 9,891,321,496.80/x
  3. Step 3: Cross multiply
    12,690,905,445.60x = 19,024,264,933.20 × 9,891,321,496.80
  4. Step 4: Simplify right side
    12,690,905,445.60x = 188,175,120,694,579,560,448
  5. Step 5: Solve for x
    x = 188,175,120,694,579,560,448/12,690,905,445.60
  6. Step 6: Final answer
    x = 14,827,556,749.30

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1.5x scale

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.