Home / 20,859,182.64-28,785,736.08-11,567,406.96

Finding the Fourth Proportional to 20,859,182.64, 28,785,736.08 and 11,567,406.96

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Solution

The fourth proportional to 20,859,182.64, 28,785,736.08 and 11,567,406.96 is: 15,963,057.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859,182.64 : 28,785,736.08 = 11,567,406.96 : x
  2. Step 2: Convert to fraction form
    20,859,182.64/28,785,736.08 = 11,567,406.96/x
  3. Step 3: Cross multiply
    20,859,182.64x = 28,785,736.08 × 11,567,406.96
  4. Step 4: Simplify right side
    20,859,182.64x = 332,976,323,880,515.12
  5. Step 5: Solve for x
    x = 332,976,323,880,515.12/20,859,182.64
  6. Step 6: Final answer
    x = 15,963,057.12

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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.