Home / 120,017,763.11-165,651,157.58-72,964,838.45

Finding the Fourth Proportional to 120,017,763.11, 165,651,157.58 and 72,964,838.45

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Solution

The fourth proportional to 120,017,763.11, 165,651,157.58 and 72,964,838.45 is: 100,707,675.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,017,763.11 : 165,651,157.58 = 72,964,838.45 : x
  2. Step 2: Convert to fraction form
    120,017,763.11/165,651,157.58 = 72,964,838.45/x
  3. Step 3: Cross multiply
    120,017,763.11x = 165,651,157.58 × 72,964,838.45
  4. Step 4: Simplify right side
    120,017,763.11x = 12,086,709,950,687,110
  5. Step 5: Solve for x
    x = 12,086,709,950,687,110/120,017,763.11
  6. Step 6: Final answer
    x = 100,707,675.58

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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.