Home / 30,456,156-45,623,324.16-18,318,917.28

Finding the Fourth Proportional to 30,456,156, 45,623,324.16 and 18,318,917.28

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Solution

The fourth proportional to 30,456,156, 45,623,324.16 and 18,318,917.28 is: 27,441,739.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,456,156 : 45,623,324.16 = 18,318,917.28 : x
  2. Step 2: Convert to fraction form
    30,456,156/45,623,324.16 = 18,318,917.28/x
  3. Step 3: Cross multiply
    30,456,156x = 45,623,324.16 × 18,318,917.28
  4. Step 4: Simplify right side
    30,456,156x = 835,769,901,325,665.50
  5. Step 5: Solve for x
    x = 835,769,901,325,665.50/30,456,156
  6. Step 6: Final answer
    x = 27,441,739.57

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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.