Home / 304,128,015.20-456,192,022.80-77,193,231.20

Finding the Fourth Proportional to 304,128,015.20, 456,192,022.80 and 77,193,231.20

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Solution

The fourth proportional to 304,128,015.20, 456,192,022.80 and 77,193,231.20 is: 115,789,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,128,015.20 : 456,192,022.80 = 77,193,231.20 : x
  2. Step 2: Convert to fraction form
    304,128,015.20/456,192,022.80 = 77,193,231.20/x
  3. Step 3: Cross multiply
    304,128,015.20x = 456,192,022.80 × 77,193,231.20
  4. Step 4: Simplify right side
    304,128,015.20x = 35,214,936,287,596,072
  5. Step 5: Solve for x
    x = 35,214,936,287,596,072/304,128,015.20
  6. Step 6: Final answer
    x = 115,789,846.80

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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.