Home / 20,020,199,372.55-30,030,299,058.83-15,385,466,982.15

Finding the Fourth Proportional to 20,020,199,372.55, 30,030,299,058.83 and 15,385,466,982.15

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Solution

The fourth proportional to 20,020,199,372.55, 30,030,299,058.83 and 15,385,466,982.15 is: 23,078,200,473.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020,199,372.55 : 30,030,299,058.83 = 15,385,466,982.15 : x
  2. Step 2: Convert to fraction form
    20,020,199,372.55/30,030,299,058.83 = 15,385,466,982.15/x
  3. Step 3: Cross multiply
    20,020,199,372.55x = 30,030,299,058.83 × 15,385,466,982.15
  4. Step 4: Simplify right side
    20,020,199,372.55x = 462,030,174,633,642,229,760
  5. Step 5: Solve for x
    x = 462,030,174,633,642,229,760/20,020,199,372.55
  6. Step 6: Final answer
    x = 23,078,200,473.23

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Double scale
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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.