Home / 28,688,517.14-43,033,242.80-8,218,157.15

Finding the Fourth Proportional to 28,688,517.14, 43,033,242.80 and 8,218,157.15

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Solution

The fourth proportional to 28,688,517.14, 43,033,242.80 and 8,218,157.15 is: 12,327,369.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688,517.14 : 43,033,242.80 = 8,218,157.15 : x
  2. Step 2: Convert to fraction form
    28,688,517.14/43,033,242.80 = 8,218,157.15/x
  3. Step 3: Cross multiply
    28,688,517.14x = 43,033,242.80 × 8,218,157.15
  4. Step 4: Simplify right side
    28,688,517.14x = 353,653,952,132,634.50
  5. Step 5: Solve for x
    x = 353,653,952,132,634.50/28,688,517.14
  6. Step 6: Final answer
    x = 12,327,369.53

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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.