Home / 13,990,612.39-19,307,084.39-8,111,389.12

Finding the Fourth Proportional to 13,990,612.39, 19,307,084.39 and 8,111,389.12

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Solution

The fourth proportional to 13,990,612.39, 19,307,084.39 and 8,111,389.12 is: 11,193,739.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990,612.39 : 19,307,084.39 = 8,111,389.12 : x
  2. Step 2: Convert to fraction form
    13,990,612.39/19,307,084.39 = 8,111,389.12/x
  3. Step 3: Cross multiply
    13,990,612.39x = 19,307,084.39 × 8,111,389.12
  4. Step 4: Simplify right side
    13,990,612.39x = 156,607,274,259,967.84
  5. Step 5: Solve for x
    x = 156,607,274,259,967.84/13,990,612.39
  6. Step 6: Final answer
    x = 11,193,739.77

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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.