Home / 18,640,211.72-25,710,241.35-12,442,133.42

Finding the Fourth Proportional to 18,640,211.72, 25,710,241.35 and 12,442,133.42

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Solution

The fourth proportional to 18,640,211.72, 25,710,241.35 and 12,442,133.42 is: 17,161,299.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640,211.72 : 25,710,241.35 = 12,442,133.42 : x
  2. Step 2: Convert to fraction form
    18,640,211.72/25,710,241.35 = 12,442,133.42/x
  3. Step 3: Cross multiply
    18,640,211.72x = 25,710,241.35 × 12,442,133.42
  4. Step 4: Simplify right side
    18,640,211.72x = 319,890,253,137,100.94
  5. Step 5: Solve for x
    x = 319,890,253,137,100.94/18,640,211.72
  6. Step 6: Final answer
    x = 17,161,299.34

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1.5x scale

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.