Home / 20,404,719,121.20-30,607,078,681.80-19,242,457,654.20

Finding the Fourth Proportional to 20,404,719,121.20, 30,607,078,681.80 and 19,242,457,654.20

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Solution

The fourth proportional to 20,404,719,121.20, 30,607,078,681.80 and 19,242,457,654.20 is: 28,863,686,481.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404,719,121.20 : 30,607,078,681.80 = 19,242,457,654.20 : x
  2. Step 2: Convert to fraction form
    20,404,719,121.20/30,607,078,681.80 = 19,242,457,654.20/x
  3. Step 3: Cross multiply
    20,404,719,121.20x = 30,607,078,681.80 × 19,242,457,654.20
  4. Step 4: Simplify right side
    20,404,719,121.20x = 588,955,415,453,304,094,720
  5. Step 5: Solve for x
    x = 588,955,415,453,304,094,720/20,404,719,121.20
  6. Step 6: Final answer
    x = 28,863,686,481.30

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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.