Home / 18,892,421.80-28,342,131.90-6,113,343.40

Finding the Fourth Proportional to 18,892,421.80, 28,342,131.90 and 6,113,343.40

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Solution

The fourth proportional to 18,892,421.80, 28,342,131.90 and 6,113,343.40 is: 9,171,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,892,421.80 : 28,342,131.90 = 6,113,343.40 : x
  2. Step 2: Convert to fraction form
    18,892,421.80/28,342,131.90 = 6,113,343.40/x
  3. Step 3: Cross multiply
    18,892,421.80x = 28,342,131.90 × 6,113,343.40
  4. Step 4: Simplify right side
    18,892,421.80x = 173,265,184,992,794.47
  5. Step 5: Solve for x
    x = 173,265,184,992,794.47/18,892,421.80
  6. Step 6: Final answer
    x = 9,171,147.40

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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.