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Finding the Fourth Proportional to 10,891,978.30, 16,337,967.45 and 10,369,431.10

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Solution

The fourth proportional to 10,891,978.30, 16,337,967.45 and 10,369,431.10 is: 15,554,146.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891,978.30 : 16,337,967.45 = 10,369,431.10 : x
  2. Step 2: Convert to fraction form
    10,891,978.30/16,337,967.45 = 10,369,431.10/x
  3. Step 3: Cross multiply
    10,891,978.30x = 16,337,967.45 × 10,369,431.10
  4. Step 4: Simplify right side
    10,891,978.30x = 169,415,427,786,817.69
  5. Step 5: Solve for x
    x = 169,415,427,786,817.69/10,891,978.30
  6. Step 6: Final answer
    x = 15,554,146.65

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Why These Related Problems?

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