Home / 18,985,516.96-28,458,368.88-8,879,620

Finding the Fourth Proportional to 18,985,516.96, 28,458,368.88 and 8,879,620

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Solution

The fourth proportional to 18,985,516.96, 28,458,368.88 and 8,879,620 is: 13,310,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985,516.96 : 28,458,368.88 = 8,879,620 : x
  2. Step 2: Convert to fraction form
    18,985,516.96/28,458,368.88 = 8,879,620/x
  3. Step 3: Cross multiply
    18,985,516.96x = 28,458,368.88 × 8,879,620
  4. Step 4: Simplify right side
    18,985,516.96x = 252,699,501,474,225.59
  5. Step 5: Solve for x
    x = 252,699,501,474,225.59/18,985,516.96
  6. Step 6: Final answer
    x = 13,310,119.60

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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.