Home / 15,515,479.96-21,411,362.16-8,992,892.78

Finding the Fourth Proportional to 15,515,479.96, 21,411,362.16 and 8,992,892.78

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Solution

The fourth proportional to 15,515,479.96, 21,411,362.16 and 8,992,892.78 is: 12,410,191.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,515,479.96 : 21,411,362.16 = 8,992,892.78 : x
  2. Step 2: Convert to fraction form
    15,515,479.96/21,411,362.16 = 8,992,892.78/x
  3. Step 3: Cross multiply
    15,515,479.96x = 21,411,362.16 × 8,992,892.78
  4. Step 4: Simplify right side
    15,515,479.96x = 192,550,084,178,629.19
  5. Step 5: Solve for x
    x = 192,550,084,178,629.19/15,515,479.96
  6. Step 6: Final answer
    x = 12,410,191.93

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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.