Home / 414,048,561.60-621,072,842.40-405,986,404.80

Finding the Fourth Proportional to 414,048,561.60, 621,072,842.40 and 405,986,404.80

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Solution

The fourth proportional to 414,048,561.60, 621,072,842.40 and 405,986,404.80 is: 608,979,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,048,561.60 : 621,072,842.40 = 405,986,404.80 : x
  2. Step 2: Convert to fraction form
    414,048,561.60/621,072,842.40 = 405,986,404.80/x
  3. Step 3: Cross multiply
    414,048,561.60x = 621,072,842.40 × 405,986,404.80
  4. Step 4: Simplify right side
    414,048,561.60x = 252,147,130,404,892,992
  5. Step 5: Solve for x
    x = 252,147,130,404,892,992/414,048,561.60
  6. Step 6: Final answer
    x = 608,979,607.20

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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.