Home / 20,420,066.89-30,611,560.95-10,188,056.17

Finding the Fourth Proportional to 20,420,066.89, 30,611,560.95 and 10,188,056.17

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Solution

The fourth proportional to 20,420,066.89, 30,611,560.95 and 10,188,056.17 is: 15,272,834.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,420,066.89 : 30,611,560.95 = 10,188,056.17 : x
  2. Step 2: Convert to fraction form
    20,420,066.89/30,611,560.95 = 10,188,056.17/x
  3. Step 3: Cross multiply
    20,420,066.89x = 30,611,560.95 × 10,188,056.17
  4. Step 4: Simplify right side
    20,420,066.89x = 311,872,302,205,980.44
  5. Step 5: Solve for x
    x = 311,872,302,205,980.44/20,420,066.89
  6. Step 6: Final answer
    x = 15,272,834.51

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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.