Home / 12,127,912.20-18,191,868.30-9,975,576.15

Finding the Fourth Proportional to 12,127,912.20, 18,191,868.30 and 9,975,576.15

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Solution

The fourth proportional to 12,127,912.20, 18,191,868.30 and 9,975,576.15 is: 14,963,364.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,912.20 : 18,191,868.30 = 9,975,576.15 : x
  2. Step 2: Convert to fraction form
    12,127,912.20/18,191,868.30 = 9,975,576.15/x
  3. Step 3: Cross multiply
    12,127,912.20x = 18,191,868.30 × 9,975,576.15
  4. Step 4: Simplify right side
    12,127,912.20x = 181,474,367,537,421.06
  5. Step 5: Solve for x
    x = 181,474,367,537,421.06/12,127,912.20
  6. Step 6: Final answer
    x = 14,963,364.23

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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.