Home / 43,999,020-66,000,318.64-20,958,109.92

Finding the Fourth Proportional to 43,999,020, 66,000,318.64 and 20,958,109.92

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Solution

The fourth proportional to 43,999,020, 66,000,318.64 and 20,958,109.92 is: 31,438,016.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,999,020 : 66,000,318.64 = 20,958,109.92 : x
  2. Step 2: Convert to fraction form
    43,999,020/66,000,318.64 = 20,958,109.92/x
  3. Step 3: Cross multiply
    43,999,020x = 66,000,318.64 × 20,958,109.92
  4. Step 4: Simplify right side
    43,999,020x = 1,383,241,932,812,145
  5. Step 5: Solve for x
    x = 1,383,241,932,812,145/43,999,020
  6. Step 6: Final answer
    x = 31,438,016.87

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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.