Home / 15,090,879.96-20,825,084.84-8,812,485.96

Finding the Fourth Proportional to 15,090,879.96, 20,825,084.84 and 8,812,485.96

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Solution

The fourth proportional to 15,090,879.96, 20,825,084.84 and 8,812,485.96 is: 12,161,038.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,090,879.96 : 20,825,084.84 = 8,812,485.96 : x
  2. Step 2: Convert to fraction form
    15,090,879.96/20,825,084.84 = 8,812,485.96/x
  3. Step 3: Cross multiply
    15,090,879.96x = 20,825,084.84 × 8,812,485.96
  4. Step 4: Simplify right side
    15,090,879.96x = 183,520,767,768,308.88
  5. Step 5: Solve for x
    x = 183,520,767,768,308.88/15,090,879.96
  6. Step 6: Final answer
    x = 12,161,038.21

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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.