Home / 28,931,072.80-43,396,609.20-8,733,690.40

Finding the Fourth Proportional to 28,931,072.80, 43,396,609.20 and 8,733,690.40

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Solution

The fourth proportional to 28,931,072.80, 43,396,609.20 and 8,733,690.40 is: 13,100,535.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931,072.80 : 43,396,609.20 = 8,733,690.40 : x
  2. Step 2: Convert to fraction form
    28,931,072.80/43,396,609.20 = 8,733,690.40/x
  3. Step 3: Cross multiply
    28,931,072.80x = 43,396,609.20 × 8,733,690.40
  4. Step 4: Simplify right side
    28,931,072.80x = 379,012,549,162,591.75
  5. Step 5: Solve for x
    x = 379,012,549,162,591.75/28,931,072.80
  6. Step 6: Final answer
    x = 13,100,535.60

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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.