Home / 30,865,133.60-42,589,969.44-16,922,819.76

Finding the Fourth Proportional to 30,865,133.60, 42,589,969.44 and 16,922,819.76

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Solution

The fourth proportional to 30,865,133.60, 42,589,969.44 and 16,922,819.76 is: 23,351,344.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,865,133.60 : 42,589,969.44 = 16,922,819.76 : x
  2. Step 2: Convert to fraction form
    30,865,133.60/42,589,969.44 = 16,922,819.76/x
  3. Step 3: Cross multiply
    30,865,133.60x = 42,589,969.44 × 16,922,819.76
  4. Step 4: Simplify right side
    30,865,133.60x = 720,742,376,417,028.12
  5. Step 5: Solve for x
    x = 720,742,376,417,028.12/30,865,133.60
  6. Step 6: Final answer
    x = 23,351,344.78

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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.