Home / 20,475,591.71-28,256,143.34-11,308,037.63

Finding the Fourth Proportional to 20,475,591.71, 28,256,143.34 and 11,308,037.63

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Solution

The fourth proportional to 20,475,591.71, 28,256,143.34 and 11,308,037.63 is: 15,604,996.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,475,591.71 : 28,256,143.34 = 11,308,037.63 : x
  2. Step 2: Convert to fraction form
    20,475,591.71/28,256,143.34 = 11,308,037.63/x
  3. Step 3: Cross multiply
    20,475,591.71x = 28,256,143.34 × 11,308,037.63
  4. Step 4: Simplify right side
    20,475,591.71x = 319,521,531,969,573
  5. Step 5: Solve for x
    x = 319,521,531,969,573/20,475,591.71
  6. Step 6: Final answer
    x = 15,604,996.26

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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.