Home / 20,727,845.78-28,604,267.41-11,435,807.48

Finding the Fourth Proportional to 20,727,845.78, 28,604,267.41 and 11,435,807.48

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Solution

The fourth proportional to 20,727,845.78, 28,604,267.41 and 11,435,807.48 is: 15,781,326.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727,845.78 : 28,604,267.41 = 11,435,807.48 : x
  2. Step 2: Convert to fraction form
    20,727,845.78/28,604,267.41 = 11,435,807.48/x
  3. Step 3: Cross multiply
    20,727,845.78x = 28,604,267.41 × 11,435,807.48
  4. Step 4: Simplify right side
    20,727,845.78x = 327,112,895,150,019.19
  5. Step 5: Solve for x
    x = 327,112,895,150,019.19/20,727,845.78
  6. Step 6: Final answer
    x = 15,781,326.17

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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.