Home / 20,666,968.31-31,007,426.54-9,150,863.37

Finding the Fourth Proportional to 20,666,968.31, 31,007,426.54 and 9,150,863.37

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Solution

The fourth proportional to 20,666,968.31, 31,007,426.54 and 9,150,863.37 is: 13,729,383.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,666,968.31 : 31,007,426.54 = 9,150,863.37 : x
  2. Step 2: Convert to fraction form
    20,666,968.31/31,007,426.54 = 9,150,863.37/x
  3. Step 3: Cross multiply
    20,666,968.31x = 31,007,426.54 × 9,150,863.37
  4. Step 4: Simplify right side
    20,666,968.31x = 283,744,723,677,097.50
  5. Step 5: Solve for x
    x = 283,744,723,677,097.50/20,666,968.31
  6. Step 6: Final answer
    x = 13,729,383.02

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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.