Home / 414,039,187.60-621,058,781.40-405,977,030.80

Finding the Fourth Proportional to 414,039,187.60, 621,058,781.40 and 405,977,030.80

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Solution

The fourth proportional to 414,039,187.60, 621,058,781.40 and 405,977,030.80 is: 608,965,546.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,039,187.60 : 621,058,781.40 = 405,977,030.80 : x
  2. Step 2: Convert to fraction form
    414,039,187.60/621,058,781.40 = 405,977,030.80/x
  3. Step 3: Cross multiply
    414,039,187.60x = 621,058,781.40 × 405,977,030.80
  4. Step 4: Simplify right side
    414,039,187.60x = 252,135,600,025,038,272
  5. Step 5: Solve for x
    x = 252,135,600,025,038,272/414,039,187.60
  6. Step 6: Final answer
    x = 608,965,546.20

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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.