Home / 21,335,216.88-31,989,865.26-8,365,828.94

Finding the Fourth Proportional to 21,335,216.88, 31,989,865.26 and 8,365,828.94

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Solution

The fourth proportional to 21,335,216.88, 31,989,865.26 and 8,365,828.94 is: 12,543,661.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335,216.88 : 31,989,865.26 = 8,365,828.94 : x
  2. Step 2: Convert to fraction form
    21,335,216.88/31,989,865.26 = 8,365,828.94/x
  3. Step 3: Cross multiply
    21,335,216.88x = 31,989,865.26 × 8,365,828.94
  4. Step 4: Simplify right side
    21,335,216.88x = 267,621,740,578,808.66
  5. Step 5: Solve for x
    x = 267,621,740,578,808.66/21,335,216.88
  6. Step 6: Final answer
    x = 12,543,661.59

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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.