Home / 20,672,498.22-28,529,693.40-11,970,822.52

Finding the Fourth Proportional to 20,672,498.22, 28,529,693.40 and 11,970,822.52

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Solution

The fourth proportional to 20,672,498.22, 28,529,693.40 and 11,970,822.52 is: 16,520,688.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672,498.22 : 28,529,693.40 = 11,970,822.52 : x
  2. Step 2: Convert to fraction form
    20,672,498.22/28,529,693.40 = 11,970,822.52/x
  3. Step 3: Cross multiply
    20,672,498.22x = 28,529,693.40 × 11,970,822.52
  4. Step 4: Simplify right side
    20,672,498.22x = 341,523,896,241,415.31
  5. Step 5: Solve for x
    x = 341,523,896,241,415.31/20,672,498.22
  6. Step 6: Final answer
    x = 16,520,688.14

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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.