Home / 429,387,926.46-643,486,003.11-195,647,407.44

Finding the Fourth Proportional to 429,387,926.46, 643,486,003.11 and 195,647,407.44

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Solution

The fourth proportional to 429,387,926.46, 643,486,003.11 and 195,647,407.44 is: 293,199,599.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,387,926.46 : 643,486,003.11 = 195,647,407.44 : x
  2. Step 2: Convert to fraction form
    429,387,926.46/643,486,003.11 = 195,647,407.44/x
  3. Step 3: Cross multiply
    429,387,926.46x = 643,486,003.11 × 195,647,407.44
  4. Step 4: Simplify right side
    429,387,926.46x = 125,896,368,232,399,280
  5. Step 5: Solve for x
    x = 125,896,368,232,399,280/429,387,926.46
  6. Step 6: Final answer
    x = 293,199,599.88

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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.