Home / 20,739,922.70-31,109,884.06-19,900,114.70

Finding the Fourth Proportional to 20,739,922.70, 31,109,884.06 and 19,900,114.70

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Solution

The fourth proportional to 20,739,922.70, 31,109,884.06 and 19,900,114.70 is: 29,850,172.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739,922.70 : 31,109,884.06 = 19,900,114.70 : x
  2. Step 2: Convert to fraction form
    20,739,922.70/31,109,884.06 = 19,900,114.70/x
  3. Step 3: Cross multiply
    20,739,922.70x = 31,109,884.06 × 19,900,114.70
  4. Step 4: Simplify right side
    20,739,922.70x = 619,090,261,097,701.62
  5. Step 5: Solve for x
    x = 619,090,261,097,701.62/20,739,922.70
  6. Step 6: Final answer
    x = 29,850,172.06

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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.