Home / 218,878,399.10-302,049,951.27-121,093,954.94

Finding the Fourth Proportional to 218,878,399.10, 302,049,951.27 and 121,093,954.94

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Solution

The fourth proportional to 218,878,399.10, 302,049,951.27 and 121,093,954.94 is: 167,108,418.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,878,399.10 : 302,049,951.27 = 121,093,954.94 : x
  2. Step 2: Convert to fraction form
    218,878,399.10/302,049,951.27 = 121,093,954.94/x
  3. Step 3: Cross multiply
    218,878,399.10x = 302,049,951.27 × 121,093,954.94
  4. Step 4: Simplify right side
    218,878,399.10x = 36,576,423,188,718,576
  5. Step 5: Solve for x
    x = 36,576,423,188,718,576/218,878,399.10
  6. Step 6: Final answer
    x = 167,108,418.83

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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.