Home / 66,468,059,791.60-99,702,089,687.40-19,939,337,359.60

Finding the Fourth Proportional to 66,468,059,791.60, 99,702,089,687.40 and 19,939,337,359.60

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Solution

The fourth proportional to 66,468,059,791.60, 99,702,089,687.40 and 19,939,337,359.60 is: 29,909,006,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,468,059,791.60 : 99,702,089,687.40 = 19,939,337,359.60 : x
  2. Step 2: Convert to fraction form
    66,468,059,791.60/99,702,089,687.40 = 19,939,337,359.60/x
  3. Step 3: Cross multiply
    66,468,059,791.60x = 99,702,089,687.40 × 19,939,337,359.60
  4. Step 4: Simplify right side
    66,468,059,791.60x = 1,987,993,601,734,164,348,928
  5. Step 5: Solve for x
    x = 1,987,993,601,734,164,348,928/66,468,059,791.60
  6. Step 6: Final answer
    x = 29,909,006,039.40

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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.