Home / 20,558,865.59-28,371,267.86-11,264,958.80

Finding the Fourth Proportional to 20,558,865.59, 28,371,267.86 and 11,264,958.80

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Solution

The fourth proportional to 20,558,865.59, 28,371,267.86 and 11,264,958.80 is: 15,545,661.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558,865.59 : 28,371,267.86 = 11,264,958.80 : x
  2. Step 2: Convert to fraction form
    20,558,865.59/28,371,267.86 = 11,264,958.80/x
  3. Step 3: Cross multiply
    20,558,865.59x = 28,371,267.86 × 11,264,958.80
  4. Step 4: Simplify right side
    20,558,865.59x = 319,601,163,546,664.19
  5. Step 5: Solve for x
    x = 319,601,163,546,664.19/20,558,865.59
  6. Step 6: Final answer
    x = 15,545,661.42

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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.