Home / 21,345,331.02-29,456,520.39-11,555,771.46

Finding the Fourth Proportional to 21,345,331.02, 29,456,520.39 and 11,555,771.46

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Solution

The fourth proportional to 21,345,331.02, 29,456,520.39 and 11,555,771.46 is: 15,946,944.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,345,331.02 : 29,456,520.39 = 11,555,771.46 : x
  2. Step 2: Convert to fraction form
    21,345,331.02/29,456,520.39 = 11,555,771.46/x
  3. Step 3: Cross multiply
    21,345,331.02x = 29,456,520.39 × 11,555,771.46
  4. Step 4: Simplify right side
    21,345,331.02x = 340,392,817,633,670.12
  5. Step 5: Solve for x
    x = 340,392,817,633,670.12/21,345,331.02
  6. Step 6: Final answer
    x = 15,946,944.90

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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.