Home / 429,069,067.95-643,609,506.96-122,361,213.63

Finding the Fourth Proportional to 429,069,067.95, 643,609,506.96 and 122,361,213.63

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Solution

The fourth proportional to 429,069,067.95, 643,609,506.96 and 122,361,213.63 is: 183,543,504.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,069,067.95 : 643,609,506.96 = 122,361,213.63 : x
  2. Step 2: Convert to fraction form
    429,069,067.95/643,609,506.96 = 122,361,213.63/x
  3. Step 3: Cross multiply
    429,069,067.95x = 643,609,506.96 × 122,361,213.63
  4. Step 4: Simplify right side
    429,069,067.95x = 78,752,840,375,431,536
  5. Step 5: Solve for x
    x = 78,752,840,375,431,536/429,069,067.95
  6. Step 6: Final answer
    x = 183,543,504.43

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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.