Home / 66,251,311.08-99,386,997.66-20,808,833.64

Finding the Fourth Proportional to 66,251,311.08, 99,386,997.66 and 20,808,833.64

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Solution

The fourth proportional to 66,251,311.08, 99,386,997.66 and 20,808,833.64 is: 31,216,401.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,251,311.08 : 99,386,997.66 = 20,808,833.64 : x
  2. Step 2: Convert to fraction form
    66,251,311.08/99,386,997.66 = 20,808,833.64/x
  3. Step 3: Cross multiply
    66,251,311.08x = 99,386,997.66 × 20,808,833.64
  4. Step 4: Simplify right side
    66,251,311.08x = 2,068,127,500,286,009.25
  5. Step 5: Solve for x
    x = 2,068,127,500,286,009.25/66,251,311.08
  6. Step 6: Final answer
    x = 31,216,401.10

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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.