Home / 20,090,207,988.60-30,135,311,982.90-15,731,865,742.20

Finding the Fourth Proportional to 20,090,207,988.60, 30,135,311,982.90 and 15,731,865,742.20

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Solution

The fourth proportional to 20,090,207,988.60, 30,135,311,982.90 and 15,731,865,742.20 is: 23,597,798,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,090,207,988.60 : 30,135,311,982.90 = 15,731,865,742.20 : x
  2. Step 2: Convert to fraction form
    20,090,207,988.60/30,135,311,982.90 = 15,731,865,742.20/x
  3. Step 3: Cross multiply
    20,090,207,988.60x = 30,135,311,982.90 × 15,731,865,742.20
  4. Step 4: Simplify right side
    20,090,207,988.60x = 474,084,682,214,293,700,608
  5. Step 5: Solve for x
    x = 474,084,682,214,293,700,608/20,090,207,988.60
  6. Step 6: Final answer
    x = 23,597,798,613.30

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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.