Home / 20,439,867.07-30,567,771.64-18,178,684.03

Finding the Fourth Proportional to 20,439,867.07, 30,567,771.64 and 18,178,684.03

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Solution

The fourth proportional to 20,439,867.07, 30,567,771.64 and 18,178,684.03 is: 27,186,177.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439,867.07 : 30,567,771.64 = 18,178,684.03 : x
  2. Step 2: Convert to fraction form
    20,439,867.07/30,567,771.64 = 18,178,684.03/x
  3. Step 3: Cross multiply
    20,439,867.07x = 30,567,771.64 × 18,178,684.03
  4. Step 4: Simplify right side
    20,439,867.07x = 555,681,862,144,754.94
  5. Step 5: Solve for x
    x = 555,681,862,144,754.94/20,439,867.07
  6. Step 6: Final answer
    x = 27,186,177.89

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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.