Home / 218,878,385.35-302,049,932.30-121,093,941.19

Finding the Fourth Proportional to 218,878,385.35, 302,049,932.30 and 121,093,941.19

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Solution

The fourth proportional to 218,878,385.35, 302,049,932.30 and 121,093,941.19 is: 167,108,399.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,878,385.35 : 302,049,932.30 = 121,093,941.19 : x
  2. Step 2: Convert to fraction form
    218,878,385.35/302,049,932.30 = 121,093,941.19/x
  3. Step 3: Cross multiply
    218,878,385.35x = 302,049,932.30 × 121,093,941.19
  4. Step 4: Simplify right side
    218,878,385.35x = 36,576,416,737,774,216
  5. Step 5: Solve for x
    x = 36,576,416,737,774,216/218,878,385.35
  6. Step 6: Final answer
    x = 167,108,399.85

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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.