Home / 12,561,622.60-18,842,433.90-11,721,814.60

Finding the Fourth Proportional to 12,561,622.60, 18,842,433.90 and 11,721,814.60

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Solution

The fourth proportional to 12,561,622.60, 18,842,433.90 and 11,721,814.60 is: 17,582,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561,622.60 : 18,842,433.90 = 11,721,814.60 : x
  2. Step 2: Convert to fraction form
    12,561,622.60/18,842,433.90 = 11,721,814.60/x
  3. Step 3: Cross multiply
    12,561,622.60x = 18,842,433.90 × 11,721,814.60
  4. Step 4: Simplify right side
    12,561,622.60x = 220,867,516,788,554.91
  5. Step 5: Solve for x
    x = 220,867,516,788,554.91/12,561,622.60
  6. Step 6: Final answer
    x = 17,582,721.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.