Home / 42,678,772.92-64,021,007.82-15,009,369.84

Finding the Fourth Proportional to 42,678,772.92, 64,021,007.82 and 15,009,369.84

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Solution

The fourth proportional to 42,678,772.92, 64,021,007.82 and 15,009,369.84 is: 22,515,056.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,678,772.92 : 64,021,007.82 = 15,009,369.84 : x
  2. Step 2: Convert to fraction form
    42,678,772.92/64,021,007.82 = 15,009,369.84/x
  3. Step 3: Cross multiply
    42,678,772.92x = 64,021,007.82 × 15,009,369.84
  4. Step 4: Simplify right side
    42,678,772.92x = 960,914,983,899,912.12
  5. Step 5: Solve for x
    x = 960,914,983,899,912.12/42,678,772.92
  6. Step 6: Final answer
    x = 22,515,056.51

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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.