Home / 490,825,857.60-736,238,786.40-127,320,213.60

Finding the Fourth Proportional to 490,825,857.60, 736,238,786.40 and 127,320,213.60

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Solution

The fourth proportional to 490,825,857.60, 736,238,786.40 and 127,320,213.60 is: 190,980,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,825,857.60 : 736,238,786.40 = 127,320,213.60 : x
  2. Step 2: Convert to fraction form
    490,825,857.60/736,238,786.40 = 127,320,213.60/x
  3. Step 3: Cross multiply
    490,825,857.60x = 736,238,786.40 × 127,320,213.60
  4. Step 4: Simplify right side
    490,825,857.60x = 93,738,079,545,052,768
  5. Step 5: Solve for x
    x = 93,738,079,545,052,768/490,825,857.60
  6. Step 6: Final answer
    x = 190,980,320.40

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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.