Home / 12,603,764.40-18,914,977.80-8,342,516.40

Finding the Fourth Proportional to 12,603,764.40, 18,914,977.80 and 8,342,516.40

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Solution

The fourth proportional to 12,603,764.40, 18,914,977.80 and 8,342,516.40 is: 12,519,950.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603,764.40 : 18,914,977.80 = 8,342,516.40 : x
  2. Step 2: Convert to fraction form
    12,603,764.40/18,914,977.80 = 8,342,516.40/x
  3. Step 3: Cross multiply
    12,603,764.40x = 18,914,977.80 × 8,342,516.40
  4. Step 4: Simplify right side
    12,603,764.40x = 157,798,512,502,135.94
  5. Step 5: Solve for x
    x = 157,798,512,502,135.94/12,603,764.40
  6. Step 6: Final answer
    x = 12,519,950.98

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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.