Home / 420,816,811,871.07-631,161,439,260.48-114,530,459,550.79

Finding the Fourth Proportional to 420,816,811,871.07, 631,161,439,260.48 and 114,530,459,550.79

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Solution

The fourth proportional to 420,816,811,871.07, 631,161,439,260.48 and 114,530,459,550.79 is: 171,778,331,212.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,816,811,871.07 : 631,161,439,260.48 = 114,530,459,550.79 : x
  2. Step 2: Convert to fraction form
    420,816,811,871.07/631,161,439,260.48 = 114,530,459,550.79/x
  3. Step 3: Cross multiply
    420,816,811,871.07x = 631,161,439,260.48 × 114,530,459,550.79
  4. Step 4: Simplify right side
    420,816,811,871.07x = 72,287,209,689,240,796,397,568
  5. Step 5: Solve for x
    x = 72,287,209,689,240,796,397,568/420,816,811,871.07
  6. Step 6: Final answer
    x = 171,778,331,212.18

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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.