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Finding the Fourth Proportional to 7,978,192,401.60, 11,967,288,602.40 and 7,978,192,401.60

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Solution

The fourth proportional to 7,978,192,401.60, 11,967,288,602.40 and 7,978,192,401.60 is: 11,967,288,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,978,192,401.60 : 11,967,288,602.40 = 7,978,192,401.60 : x
  2. Step 2: Convert to fraction form
    7,978,192,401.60/11,967,288,602.40 = 7,978,192,401.60/x
  3. Step 3: Cross multiply
    7,978,192,401.60x = 11,967,288,602.40 × 7,978,192,401.60
  4. Step 4: Simplify right side
    7,978,192,401.60x = 95,477,330,995,421,970,432
  5. Step 5: Solve for x
    x = 95,477,330,995,421,970,432/7,978,192,401.60
  6. Step 6: Final answer
    x = 11,967,288,602.40

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1.5x scale

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