Home / 20,418,890.00-28,176,333.71-11,716,875.45

Finding the Fourth Proportional to 20,418,890.00, 28,176,333.71 and 11,716,875.45

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Solution

The fourth proportional to 20,418,890.00, 28,176,333.71 and 11,716,875.45 is: 16,168,292.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,418,890.00 : 28,176,333.71 = 11,716,875.45 : x
  2. Step 2: Convert to fraction form
    20,418,890.00/28,176,333.71 = 11,716,875.45/x
  3. Step 3: Cross multiply
    20,418,890.00x = 28,176,333.71 × 11,716,875.45
  4. Step 4: Simplify right side
    20,418,890.00x = 330,138,592,659,122
  5. Step 5: Solve for x
    x = 330,138,592,659,122/20,418,890.00
  6. Step 6: Final answer
    x = 16,168,292.83

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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.