Home / 20,455,277.60-28,234,185.96-12,090,396.24

Finding the Fourth Proportional to 20,455,277.60, 28,234,185.96 and 12,090,396.24

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Solution

The fourth proportional to 20,455,277.60, 28,234,185.96 and 12,090,396.24 is: 16,688,235.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455,277.60 : 28,234,185.96 = 12,090,396.24 : x
  2. Step 2: Convert to fraction form
    20,455,277.60/28,234,185.96 = 12,090,396.24/x
  3. Step 3: Cross multiply
    20,455,277.60x = 28,234,185.96 × 12,090,396.24
  4. Step 4: Simplify right side
    20,455,277.60x = 341,362,495,770,244.81
  5. Step 5: Solve for x
    x = 341,362,495,770,244.81/20,455,277.60
  6. Step 6: Final answer
    x = 16,688,235.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.