Home / 20,821,202.27-28,732,962.08-11,527,881.11

Finding the Fourth Proportional to 20,821,202.27, 28,732,962.08 and 11,527,881.11

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Solution

The fourth proportional to 20,821,202.27, 28,732,962.08 and 11,527,881.11 is: 15,908,311.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,821,202.27 : 28,732,962.08 = 11,527,881.11 : x
  2. Step 2: Convert to fraction form
    20,821,202.27/28,732,962.08 = 11,527,881.11/x
  3. Step 3: Cross multiply
    20,821,202.27x = 28,732,962.08 × 11,527,881.11
  4. Step 4: Simplify right side
    20,821,202.27x = 331,230,170,681,533.19
  5. Step 5: Solve for x
    x = 331,230,170,681,533.19/20,821,202.27
  6. Step 6: Final answer
    x = 15,908,311.46

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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.