Home / 21,335,216.37-31,989,864.51-8,365,828.46

Finding the Fourth Proportional to 21,335,216.37, 31,989,864.51 and 8,365,828.46

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Solution

The fourth proportional to 21,335,216.37, 31,989,864.51 and 8,365,828.46 is: 12,543,660.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335,216.37 : 31,989,864.51 = 8,365,828.46 : x
  2. Step 2: Convert to fraction form
    21,335,216.37/31,989,864.51 = 8,365,828.46/x
  3. Step 3: Cross multiply
    21,335,216.37x = 31,989,864.51 × 8,365,828.46
  4. Step 4: Simplify right side
    21,335,216.37x = 267,621,718,789,352.66
  5. Step 5: Solve for x
    x = 267,621,718,789,352.66/21,335,216.37
  6. Step 6: Final answer
    x = 12,543,660.87

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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.