Home / 12,087,845.40-18,145,764.90-7,300,939.80

Finding the Fourth Proportional to 12,087,845.40, 18,145,764.90 and 7,300,939.80

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Solution

The fourth proportional to 12,087,845.40, 18,145,764.90 and 7,300,939.80 is: 10,959,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087,845.40 : 18,145,764.90 = 7,300,939.80 : x
  2. Step 2: Convert to fraction form
    12,087,845.40/18,145,764.90 = 7,300,939.80/x
  3. Step 3: Cross multiply
    12,087,845.40x = 18,145,764.90 × 7,300,939.80
  4. Step 4: Simplify right side
    12,087,845.40x = 132,481,137,159,853
  5. Step 5: Solve for x
    x = 132,481,137,159,853/12,087,845.40
  6. Step 6: Final answer
    x = 10,959,863.63

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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.