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Finding the Fourth Proportional to 40,322,019.20, 60,483,028.80 and 28,984,611.20

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Solution

The fourth proportional to 40,322,019.20, 60,483,028.80 and 28,984,611.20 is: 43,476,916.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,322,019.20 : 60,483,028.80 = 28,984,611.20 : x
  2. Step 2: Convert to fraction form
    40,322,019.20/60,483,028.80 = 28,984,611.20/x
  3. Step 3: Cross multiply
    40,322,019.20x = 60,483,028.80 × 28,984,611.20
  4. Step 4: Simplify right side
    40,322,019.20x = 1,753,077,073,966,402.50
  5. Step 5: Solve for x
    x = 1,753,077,073,966,402.50/40,322,019.20
  6. Step 6: Final answer
    x = 43,476,916.80

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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.