Home / 218,878,384.35-302,049,930.92-121,093,940.19

Finding the Fourth Proportional to 218,878,384.35, 302,049,930.92 and 121,093,940.19

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Solution

The fourth proportional to 218,878,384.35, 302,049,930.92 and 121,093,940.19 is: 167,108,398.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,878,384.35 : 302,049,930.92 = 121,093,940.19 : x
  2. Step 2: Convert to fraction form
    218,878,384.35/302,049,930.92 = 121,093,940.19/x
  3. Step 3: Cross multiply
    218,878,384.35x = 302,049,930.92 × 121,093,940.19
  4. Step 4: Simplify right side
    218,878,384.35x = 36,576,416,268,614,640
  5. Step 5: Solve for x
    x = 36,576,416,268,614,640/218,878,384.35
  6. Step 6: Final answer
    x = 167,108,398.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.