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Finding the Fourth Proportional to 9,993,458.79, 13,814,215.34 and 8,916,405.03

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Solution

The fourth proportional to 9,993,458.79, 13,814,215.34 and 8,916,405.03 is: 12,325,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993,458.79 : 13,814,215.34 = 8,916,405.03 : x
  2. Step 2: Convert to fraction form
    9,993,458.79/13,814,215.34 = 8,916,405.03/x
  3. Step 3: Cross multiply
    9,993,458.79x = 13,814,215.34 × 8,916,405.03
  4. Step 4: Simplify right side
    9,993,458.79x = 123,173,139,098,497.14
  5. Step 5: Solve for x
    x = 123,173,139,098,497.14/9,993,458.79
  6. Step 6: Final answer
    x = 12,325,376.20

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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.