Home / 442,610,999.80-663,349,629.30-339,865,739.80

Finding the Fourth Proportional to 442,610,999.80, 663,349,629.30 and 339,865,739.80

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Solution

The fourth proportional to 442,610,999.80, 663,349,629.30 and 339,865,739.80 is: 509,363,329.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,610,999.80 : 663,349,629.30 = 339,865,739.80 : x
  2. Step 2: Convert to fraction form
    442,610,999.80/663,349,629.30 = 339,865,739.80/x
  3. Step 3: Cross multiply
    442,610,999.80x = 663,349,629.30 × 339,865,739.80
  4. Step 4: Simplify right side
    442,610,999.80x = 225,449,812,508,100,256
  5. Step 5: Solve for x
    x = 225,449,812,508,100,256/442,610,999.80
  6. Step 6: Final answer
    x = 509,363,329.45

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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.