Home / 20,139,158.80-27,791,956.20-10,971,773.20

Finding the Fourth Proportional to 20,139,158.80, 27,791,956.20 and 10,971,773.20

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Solution

The fourth proportional to 20,139,158.80, 27,791,956.20 and 10,971,773.20 is: 15,141,001.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139,158.80 : 27,791,956.20 = 10,971,773.20 : x
  2. Step 2: Convert to fraction form
    20,139,158.80/27,791,956.20 = 10,971,773.20/x
  3. Step 3: Cross multiply
    20,139,158.80x = 27,791,956.20 × 10,971,773.20
  4. Step 4: Simplify right side
    20,139,158.80x = 304,927,040,210,733.81
  5. Step 5: Solve for x
    x = 304,927,040,210,733.81/20,139,158.80
  6. Step 6: Final answer
    x = 15,141,001.83

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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.