Home / 51,284,631.20-76,861,628.40-20,958,231.20

Finding the Fourth Proportional to 51,284,631.20, 76,861,628.40 and 20,958,231.20

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Solution

The fourth proportional to 51,284,631.20, 76,861,628.40 and 20,958,231.20 is: 31,410,653.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,284,631.20 : 76,861,628.40 = 20,958,231.20 : x
  2. Step 2: Convert to fraction form
    51,284,631.20/76,861,628.40 = 20,958,231.20/x
  3. Step 3: Cross multiply
    51,284,631.20x = 76,861,628.40 × 20,958,231.20
  4. Step 4: Simplify right side
    51,284,631.20x = 1,610,883,778,415,686.25
  5. Step 5: Solve for x
    x = 1,610,883,778,415,686.25/51,284,631.20
  6. Step 6: Final answer
    x = 31,410,653.46

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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.