Home / 21,354,287.22-29,469,455.64-13,098,901.68

Finding the Fourth Proportional to 21,354,287.22, 29,469,455.64 and 13,098,901.68

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Solution

The fourth proportional to 21,354,287.22, 29,469,455.64 and 13,098,901.68 is: 18,076,815.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,354,287.22 : 29,469,455.64 = 13,098,901.68 : x
  2. Step 2: Convert to fraction form
    21,354,287.22/29,469,455.64 = 13,098,901.68/x
  3. Step 3: Cross multiply
    21,354,287.22x = 29,469,455.64 × 13,098,901.68
  4. Step 4: Simplify right side
    21,354,287.22x = 386,017,501,991,481.50
  5. Step 5: Solve for x
    x = 386,017,501,991,481.50/21,354,287.22
  6. Step 6: Final answer
    x = 18,076,815.12

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1.5x scale

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.