Home / 15,908,770.31-21,953,485.10-9,724,172.18

Finding the Fourth Proportional to 15,908,770.31, 21,953,485.10 and 9,724,172.18

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Solution

The fourth proportional to 15,908,770.31, 21,953,485.10 and 9,724,172.18 is: 13,418,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,908,770.31 : 21,953,485.10 = 9,724,172.18 : x
  2. Step 2: Convert to fraction form
    15,908,770.31/21,953,485.10 = 9,724,172.18/x
  3. Step 3: Cross multiply
    15,908,770.31x = 21,953,485.10 × 9,724,172.18
  4. Step 4: Simplify right side
    15,908,770.31x = 213,479,469,014,843.62
  5. Step 5: Solve for x
    x = 213,479,469,014,843.62/15,908,770.31
  6. Step 6: Final answer
    x = 13,418,979.90

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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.