Home / 420,816,811,825.03-631,161,439,191.60-114,530,459,504.88

Finding the Fourth Proportional to 420,816,811,825.03, 631,161,439,191.60 and 114,530,459,504.88

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Solution

The fourth proportional to 420,816,811,825.03, 631,161,439,191.60 and 114,530,459,504.88 is: 171,778,331,143.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,816,811,825.03 : 631,161,439,191.60 = 114,530,459,504.88 : x
  2. Step 2: Convert to fraction form
    420,816,811,825.03/631,161,439,191.60 = 114,530,459,504.88/x
  3. Step 3: Cross multiply
    420,816,811,825.03x = 631,161,439,191.60 × 114,530,459,504.88
  4. Step 4: Simplify right side
    420,816,811,825.03x = 72,287,209,652,375,322,099,712
  5. Step 5: Solve for x
    x = 72,287,209,652,375,322,099,712/420,816,811,825.03
  6. Step 6: Final answer
    x = 171,778,331,143.37

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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.