Home / 389,745,082.46-537,848,198.34-213,539,753.63

Finding the Fourth Proportional to 389,745,082.46, 537,848,198.34 and 213,539,753.63

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Solution

The fourth proportional to 389,745,082.46, 537,848,198.34 and 213,539,753.63 is: 294,684,851.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,745,082.46 : 537,848,198.34 = 213,539,753.63 : x
  2. Step 2: Convert to fraction form
    389,745,082.46/537,848,198.34 = 213,539,753.63/x
  3. Step 3: Cross multiply
    389,745,082.46x = 537,848,198.34 × 213,539,753.63
  4. Step 4: Simplify right side
    389,745,082.46x = 114,851,971,763,862,976
  5. Step 5: Solve for x
    x = 114,851,971,763,862,976/389,745,082.46
  6. Step 6: Final answer
    x = 294,684,851.54

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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.