Home / 21,275,136,000.60-31,912,704,000.90-20,132,325,274.20

Finding the Fourth Proportional to 21,275,136,000.60, 31,912,704,000.90 and 20,132,325,274.20

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Solution

The fourth proportional to 21,275,136,000.60, 31,912,704,000.90 and 20,132,325,274.20 is: 30,198,487,911.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,136,000.60 : 31,912,704,000.90 = 20,132,325,274.20 : x
  2. Step 2: Convert to fraction form
    21,275,136,000.60/31,912,704,000.90 = 20,132,325,274.20/x
  3. Step 3: Cross multiply
    21,275,136,000.60x = 31,912,704,000.90 × 20,132,325,274.20
  4. Step 4: Simplify right side
    21,275,136,000.60x = 642,476,937,325,382,598,656
  5. Step 5: Solve for x
    x = 642,476,937,325,382,598,656/21,275,136,000.60
  6. Step 6: Final answer
    x = 30,198,487,911.30

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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.