Home / 21,091,904.64-31,637,856.96-20,014,850.88

Finding the Fourth Proportional to 21,091,904.64, 31,637,856.96 and 20,014,850.88

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Solution

The fourth proportional to 21,091,904.64, 31,637,856.96 and 20,014,850.88 is: 30,022,276.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,091,904.64 : 31,637,856.96 = 20,014,850.88 : x
  2. Step 2: Convert to fraction form
    21,091,904.64/31,637,856.96 = 20,014,850.88/x
  3. Step 3: Cross multiply
    21,091,904.64x = 31,637,856.96 × 20,014,850.88
  4. Step 4: Simplify right side
    21,091,904.64x = 633,226,989,217,170.12
  5. Step 5: Solve for x
    x = 633,226,989,217,170.12/21,091,904.64
  6. Step 6: Final answer
    x = 30,022,276.32

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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.