Home / 20,998,602.32-28,977,436.64-11,579,388.24

Finding the Fourth Proportional to 20,998,602.32, 28,977,436.64 and 11,579,388.24

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Solution

The fourth proportional to 20,998,602.32, 28,977,436.64 and 11,579,388.24 is: 15,979,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,998,602.32 : 28,977,436.64 = 11,579,388.24 : x
  2. Step 2: Convert to fraction form
    20,998,602.32/28,977,436.64 = 11,579,388.24/x
  3. Step 3: Cross multiply
    20,998,602.32x = 28,977,436.64 × 11,579,388.24
  4. Step 4: Simplify right side
    20,998,602.32x = 335,540,989,054,561.12
  5. Step 5: Solve for x
    x = 335,540,989,054,561.12/20,998,602.32
  6. Step 6: Final answer
    x = 15,979,205.85

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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.