Home / 20,727,860.60-31,091,790.90-9,939,608.30

Finding the Fourth Proportional to 20,727,860.60, 31,091,790.90 and 9,939,608.30

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Solution

The fourth proportional to 20,727,860.60, 31,091,790.90 and 9,939,608.30 is: 14,909,412.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727,860.60 : 31,091,790.90 = 9,939,608.30 : x
  2. Step 2: Convert to fraction form
    20,727,860.60/31,091,790.90 = 9,939,608.30/x
  3. Step 3: Cross multiply
    20,727,860.60x = 31,091,790.90 × 9,939,608.30
  4. Step 4: Simplify right side
    20,727,860.60x = 309,040,222,891,504.50
  5. Step 5: Solve for x
    x = 309,040,222,891,504.50/20,727,860.60
  6. Step 6: Final answer
    x = 14,909,412.45

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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.