Home / 20,336,007.12-30,503,985.08-5,189,938.64

Finding the Fourth Proportional to 20,336,007.12, 30,503,985.08 and 5,189,938.64

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Solution

The fourth proportional to 20,336,007.12, 30,503,985.08 and 5,189,938.64 is: 7,784,901.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336,007.12 : 30,503,985.08 = 5,189,938.64 : x
  2. Step 2: Convert to fraction form
    20,336,007.12/30,503,985.08 = 5,189,938.64/x
  3. Step 3: Cross multiply
    20,336,007.12x = 30,503,985.08 × 5,189,938.64
  4. Step 4: Simplify right side
    20,336,007.12x = 158,313,810,840,675.47
  5. Step 5: Solve for x
    x = 158,313,810,840,675.47/20,336,007.12
  6. Step 6: Final answer
    x = 7,784,901.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.