Home / 143,315,926.21-214,700,019.45-120,121,142.73

Finding the Fourth Proportional to 143,315,926.21, 214,700,019.45 and 120,121,142.73

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Solution

The fourth proportional to 143,315,926.21, 214,700,019.45 and 120,121,142.73 is: 179,952,168.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,315,926.21 : 214,700,019.45 = 120,121,142.73 : x
  2. Step 2: Convert to fraction form
    143,315,926.21/214,700,019.45 = 120,121,142.73/x
  3. Step 3: Cross multiply
    143,315,926.21x = 214,700,019.45 × 120,121,142.73
  4. Step 4: Simplify right side
    143,315,926.21x = 25,790,011,680,487,224
  5. Step 5: Solve for x
    x = 25,790,011,680,487,224/143,315,926.21
  6. Step 6: Final answer
    x = 179,952,168.35

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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.