Home / 420,816,811,824.90-631,161,439,191.30-114,530,459,504.71

Finding the Fourth Proportional to 420,816,811,824.90, 631,161,439,191.30 and 114,530,459,504.71

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Solution

The fourth proportional to 420,816,811,824.90, 631,161,439,191.30 and 114,530,459,504.71 is: 171,778,331,143.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,816,811,824.90 : 631,161,439,191.30 = 114,530,459,504.71 : x
  2. Step 2: Convert to fraction form
    420,816,811,824.90/631,161,439,191.30 = 114,530,459,504.71/x
  3. Step 3: Cross multiply
    420,816,811,824.90x = 631,161,439,191.30 × 114,530,459,504.71
  4. Step 4: Simplify right side
    420,816,811,824.90x = 72,287,209,652,233,680,453,632
  5. Step 5: Solve for x
    x = 72,287,209,652,233,680,453,632/420,816,811,824.90
  6. Step 6: Final answer
    x = 171,778,331,143.08

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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.