Home / 20,759,958.70-31,139,938.05-11,194,020.70

Finding the Fourth Proportional to 20,759,958.70, 31,139,938.05 and 11,194,020.70

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Solution

The fourth proportional to 20,759,958.70, 31,139,938.05 and 11,194,020.70 is: 16,791,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759,958.70 : 31,139,938.05 = 11,194,020.70 : x
  2. Step 2: Convert to fraction form
    20,759,958.70/31,139,938.05 = 11,194,020.70/x
  3. Step 3: Cross multiply
    20,759,958.70x = 31,139,938.05 × 11,194,020.70
  4. Step 4: Simplify right side
    20,759,958.70x = 348,581,111,128,417.62
  5. Step 5: Solve for x
    x = 348,581,111,128,417.62/20,759,958.70
  6. Step 6: Final answer
    x = 16,791,031.05

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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.