Home / 71,561,951.40-107,343,860.22-20,445,637.80

Finding the Fourth Proportional to 71,561,951.40, 107,343,860.22 and 20,445,637.80

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Solution

The fourth proportional to 71,561,951.40, 107,343,860.22 and 20,445,637.80 is: 30,668,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,561,951.40 : 107,343,860.22 = 20,445,637.80 : x
  2. Step 2: Convert to fraction form
    71,561,951.40/107,343,860.22 = 20,445,637.80/x
  3. Step 3: Cross multiply
    71,561,951.40x = 107,343,860.22 × 20,445,637.80
  4. Step 4: Simplify right side
    71,561,951.40x = 2,194,713,686,111,948.25
  5. Step 5: Solve for x
    x = 2,194,713,686,111,948.25/71,561,951.40
  6. Step 6: Final answer
    x = 30,668,723.30

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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.