Home / 15,191,983.43-20,964,935.50-8,222,659.84

Finding the Fourth Proportional to 15,191,983.43, 20,964,935.50 and 8,222,659.84

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Solution

The fourth proportional to 15,191,983.43, 20,964,935.50 and 8,222,659.84 is: 11,347,269.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,191,983.43 : 20,964,935.50 = 8,222,659.84 : x
  2. Step 2: Convert to fraction form
    15,191,983.43/20,964,935.50 = 8,222,659.84/x
  3. Step 3: Cross multiply
    15,191,983.43x = 20,964,935.50 × 8,222,659.84
  4. Step 4: Simplify right side
    15,191,983.43x = 172,387,533,111,071.34
  5. Step 5: Solve for x
    x = 172,387,533,111,071.34/15,191,983.43
  6. Step 6: Final answer
    x = 11,347,269.69

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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.