Home / 42,968,213.52-64,451,685.96-10,620,119.76

Finding the Fourth Proportional to 42,968,213.52, 64,451,685.96 and 10,620,119.76

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Solution

The fourth proportional to 42,968,213.52, 64,451,685.96 and 10,620,119.76 is: 15,930,022.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,968,213.52 : 64,451,685.96 = 10,620,119.76 : x
  2. Step 2: Convert to fraction form
    42,968,213.52/64,451,685.96 = 10,620,119.76/x
  3. Step 3: Cross multiply
    42,968,213.52x = 64,451,685.96 × 10,620,119.76
  4. Step 4: Simplify right side
    42,968,213.52x = 684,484,623,629,110.62
  5. Step 5: Solve for x
    x = 684,484,623,629,110.62/42,968,213.52
  6. Step 6: Final answer
    x = 15,930,022.86

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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.