Home / 21,348,135.28-29,458,528.86-12,644,903.17

Finding the Fourth Proportional to 21,348,135.28, 29,458,528.86 and 12,644,903.17

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Solution

The fourth proportional to 21,348,135.28, 29,458,528.86 and 12,644,903.17 is: 17,448,842.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,348,135.28 : 29,458,528.86 = 12,644,903.17 : x
  2. Step 2: Convert to fraction form
    21,348,135.28/29,458,528.86 = 12,644,903.17/x
  3. Step 3: Cross multiply
    21,348,135.28x = 29,458,528.86 × 12,644,903.17
  4. Step 4: Simplify right side
    21,348,135.28x = 372,500,244,965,350.50
  5. Step 5: Solve for x
    x = 372,500,244,965,350.50/21,348,135.28
  6. Step 6: Final answer
    x = 17,448,842.26

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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.