Home / 20,838,622.89-31,262,900.58-7,191,887.03

Finding the Fourth Proportional to 20,838,622.89, 31,262,900.58 and 7,191,887.03

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Solution

The fourth proportional to 20,838,622.89, 31,262,900.58 and 7,191,887.03 is: 10,789,544.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838,622.89 : 31,262,900.58 = 7,191,887.03 : x
  2. Step 2: Convert to fraction form
    20,838,622.89/31,262,900.58 = 7,191,887.03/x
  3. Step 3: Cross multiply
    20,838,622.89x = 31,262,900.58 × 7,191,887.03
  4. Step 4: Simplify right side
    20,838,622.89x = 224,839,249,201,481.47
  5. Step 5: Solve for x
    x = 224,839,249,201,481.47/20,838,622.89
  6. Step 6: Final answer
    x = 10,789,544.51

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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.