Home / 28,079,745.12-42,088,704.48-18,360,349.92

Finding the Fourth Proportional to 28,079,745.12, 42,088,704.48 and 18,360,349.92

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Solution

The fourth proportional to 28,079,745.12, 42,088,704.48 and 18,360,349.92 is: 27,520,311.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,079,745.12 : 42,088,704.48 = 18,360,349.92 : x
  2. Step 2: Convert to fraction form
    28,079,745.12/42,088,704.48 = 18,360,349.92/x
  3. Step 3: Cross multiply
    28,079,745.12x = 42,088,704.48 × 18,360,349.92
  4. Step 4: Simplify right side
    28,079,745.12x = 772,763,341,932,271.62
  5. Step 5: Solve for x
    x = 772,763,341,932,271.62/28,079,745.12
  6. Step 6: Final answer
    x = 27,520,311.83

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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.