Home / 12,048,843.40-18,087,261.90-7,261,937.80

Finding the Fourth Proportional to 12,048,843.40, 18,087,261.90 and 7,261,937.80

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Solution

The fourth proportional to 12,048,843.40, 18,087,261.90 and 7,261,937.80 is: 10,901,342.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,048,843.40 : 18,087,261.90 = 7,261,937.80 : x
  2. Step 2: Convert to fraction form
    12,048,843.40/18,087,261.90 = 7,261,937.80/x
  3. Step 3: Cross multiply
    12,048,843.40x = 18,087,261.90 × 7,261,937.80
  4. Step 4: Simplify right side
    12,048,843.40x = 131,348,570,890,109.81
  5. Step 5: Solve for x
    x = 131,348,570,890,109.81/12,048,843.40
  6. Step 6: Final answer
    x = 10,901,342.69

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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.