Home / 13,621,681.86-18,786,355.74-11,510,310.66

Finding the Fourth Proportional to 13,621,681.86, 18,786,355.74 and 11,510,310.66

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Solution

The fourth proportional to 13,621,681.86, 18,786,355.74 and 11,510,310.66 is: 15,874,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621,681.86 : 18,786,355.74 = 11,510,310.66 : x
  2. Step 2: Convert to fraction form
    13,621,681.86/18,786,355.74 = 11,510,310.66/x
  3. Step 3: Cross multiply
    13,621,681.86x = 18,786,355.74 × 11,510,310.66
  4. Step 4: Simplify right side
    13,621,681.86x = 216,236,790,736,674.19
  5. Step 5: Solve for x
    x = 216,236,790,736,674.19/13,621,681.86
  6. Step 6: Final answer
    x = 15,874,456.10

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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.