Home / 20,139,157.30-27,791,954.13-10,971,771.70

Finding the Fourth Proportional to 20,139,157.30, 27,791,954.13 and 10,971,771.70

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Solution

The fourth proportional to 20,139,157.30, 27,791,954.13 and 10,971,771.70 is: 15,140,999.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139,157.30 : 27,791,954.13 = 10,971,771.70 : x
  2. Step 2: Convert to fraction form
    20,139,157.30/27,791,954.13 = 10,971,771.70/x
  3. Step 3: Cross multiply
    20,139,157.30x = 27,791,954.13 × 10,971,771.70
  4. Step 4: Simplify right side
    20,139,157.30x = 304,926,975,811,232.06
  5. Step 5: Solve for x
    x = 304,926,975,811,232.06/20,139,157.30
  6. Step 6: Final answer
    x = 15,140,999.76

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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.