Home / 20,404,719,129.20-30,607,078,693.80-19,242,457,662.20

Finding the Fourth Proportional to 20,404,719,129.20, 30,607,078,693.80 and 19,242,457,662.20

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Solution

The fourth proportional to 20,404,719,129.20, 30,607,078,693.80 and 19,242,457,662.20 is: 28,863,686,493.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404,719,129.20 : 30,607,078,693.80 = 19,242,457,662.20 : x
  2. Step 2: Convert to fraction form
    20,404,719,129.20/30,607,078,693.80 = 19,242,457,662.20/x
  3. Step 3: Cross multiply
    20,404,719,129.20x = 30,607,078,693.80 × 19,242,457,662.20
  4. Step 4: Simplify right side
    20,404,719,129.20x = 588,955,415,929,070,157,824
  5. Step 5: Solve for x
    x = 588,955,415,929,070,157,824/20,404,719,129.20
  6. Step 6: Final answer
    x = 28,863,686,493.30

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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.