Home / 20,404,719,067.70-30,607,078,601.55-19,242,457,600.70

Finding the Fourth Proportional to 20,404,719,067.70, 30,607,078,601.55 and 19,242,457,600.70

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Solution

The fourth proportional to 20,404,719,067.70, 30,607,078,601.55 and 19,242,457,600.70 is: 28,863,686,401.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404,719,067.70 : 30,607,078,601.55 = 19,242,457,600.70 : x
  2. Step 2: Convert to fraction form
    20,404,719,067.70/30,607,078,601.55 = 19,242,457,600.70/x
  3. Step 3: Cross multiply
    20,404,719,067.70x = 30,607,078,601.55 × 19,242,457,600.70
  4. Step 4: Simplify right side
    20,404,719,067.70x = 588,955,412,271,618,129,920
  5. Step 5: Solve for x
    x = 588,955,412,271,618,129,920/20,404,719,067.70
  6. Step 6: Final answer
    x = 28,863,686,401.05

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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.