Home / 21,178,562.40-31,764,187.26-5,616,498.96

Finding the Fourth Proportional to 21,178,562.40, 31,764,187.26 and 5,616,498.96

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Solution

The fourth proportional to 21,178,562.40, 31,764,187.26 and 5,616,498.96 is: 8,423,778.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,178,562.40 : 31,764,187.26 = 5,616,498.96 : x
  2. Step 2: Convert to fraction form
    21,178,562.40/31,764,187.26 = 5,616,498.96/x
  3. Step 3: Cross multiply
    21,178,562.40x = 31,764,187.26 × 5,616,498.96
  4. Step 4: Simplify right side
    21,178,562.40x = 178,403,524,711,035.25
  5. Step 5: Solve for x
    x = 178,403,524,711,035.25/21,178,562.40
  6. Step 6: Final answer
    x = 8,423,778.79

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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.