Home / 18,800,643.72-28,201,062.88-8,558,340.64

Finding the Fourth Proportional to 18,800,643.72, 28,201,062.88 and 8,558,340.64

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Solution

The fourth proportional to 18,800,643.72, 28,201,062.88 and 8,558,340.64 is: 12,837,555.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800,643.72 : 28,201,062.88 = 8,558,340.64 : x
  2. Step 2: Convert to fraction form
    18,800,643.72/28,201,062.88 = 8,558,340.64/x
  3. Step 3: Cross multiply
    18,800,643.72x = 28,201,062.88 × 8,558,340.64
  4. Step 4: Simplify right side
    18,800,643.72x = 241,354,302,537,099.44
  5. Step 5: Solve for x
    x = 241,354,302,537,099.44/18,800,643.72
  6. Step 6: Final answer
    x = 12,837,555.25

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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.