Home / 309,681,441.95-427,142,811.23-203,801,122.85

Finding the Fourth Proportional to 309,681,441.95, 427,142,811.23 and 203,801,122.85

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Solution

The fourth proportional to 309,681,441.95, 427,142,811.23 and 203,801,122.85 is: 281,102,361.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,681,441.95 : 427,142,811.23 = 203,801,122.85 : x
  2. Step 2: Convert to fraction form
    309,681,441.95/427,142,811.23 = 203,801,122.85/x
  3. Step 3: Cross multiply
    309,681,441.95x = 427,142,811.23 × 203,801,122.85
  4. Step 4: Simplify right side
    309,681,441.95x = 87,052,184,546,028,448
  5. Step 5: Solve for x
    x = 87,052,184,546,028,448/309,681,441.95
  6. Step 6: Final answer
    x = 281,102,361.18

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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.