Home / 128,222,176.96-192,330,568.14-31,178,382.22

Finding the Fourth Proportional to 128,222,176.96, 192,330,568.14 and 31,178,382.22

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Solution

The fourth proportional to 128,222,176.96, 192,330,568.14 and 31,178,382.22 is: 46,766,917.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,222,176.96 : 192,330,568.14 = 31,178,382.22 : x
  2. Step 2: Convert to fraction form
    128,222,176.96/192,330,568.14 = 31,178,382.22/x
  3. Step 3: Cross multiply
    128,222,176.96x = 192,330,568.14 × 31,178,382.22
  4. Step 4: Simplify right side
    128,222,176.96x = 5,996,555,966,058,674
  5. Step 5: Solve for x
    x = 5,996,555,966,058,674/128,222,176.96
  6. Step 6: Final answer
    x = 46,766,917.46

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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.