Home / 389,647,282.80-537,694,142.40-213,436,059.96

Finding the Fourth Proportional to 389,647,282.80, 537,694,142.40 and 213,436,059.96

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Solution

The fourth proportional to 389,647,282.80, 537,694,142.40 and 213,436,059.96 is: 294,531,296.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,647,282.80 : 537,694,142.40 = 213,436,059.96 : x
  2. Step 2: Convert to fraction form
    389,647,282.80/537,694,142.40 = 213,436,059.96/x
  3. Step 3: Cross multiply
    389,647,282.80x = 537,694,142.40 × 213,436,059.96
  4. Step 4: Simplify right side
    389,647,282.80x = 114,763,319,217,427,184
  5. Step 5: Solve for x
    x = 114,763,319,217,427,184/389,647,282.80
  6. Step 6: Final answer
    x = 294,531,296.08

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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.