Home / 20,819,835.36-28,732,270.80-11,527,405.44

Finding the Fourth Proportional to 20,819,835.36, 28,732,270.80 and 11,527,405.44

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Solution

The fourth proportional to 20,819,835.36, 28,732,270.80 and 11,527,405.44 is: 15,908,316.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,819,835.36 : 28,732,270.80 = 11,527,405.44 : x
  2. Step 2: Convert to fraction form
    20,819,835.36/28,732,270.80 = 11,527,405.44/x
  3. Step 3: Cross multiply
    20,819,835.36x = 28,732,270.80 × 11,527,405.44
  4. Step 4: Simplify right side
    20,819,835.36x = 331,208,534,723,473.12
  5. Step 5: Solve for x
    x = 331,208,534,723,473.12/20,819,835.36
  6. Step 6: Final answer
    x = 15,908,316.71

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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.