Home / 409,318,518.20-613,977,777.30-225,014,779.40

Finding the Fourth Proportional to 409,318,518.20, 613,977,777.30 and 225,014,779.40

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Solution

The fourth proportional to 409,318,518.20, 613,977,777.30 and 225,014,779.40 is: 337,522,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,318,518.20 : 613,977,777.30 = 225,014,779.40 : x
  2. Step 2: Convert to fraction form
    409,318,518.20/613,977,777.30 = 225,014,779.40/x
  3. Step 3: Cross multiply
    409,318,518.20x = 613,977,777.30 × 225,014,779.40
  4. Step 4: Simplify right side
    409,318,518.20x = 138,154,074,115,661,824
  5. Step 5: Solve for x
    x = 138,154,074,115,661,824/409,318,518.20
  6. Step 6: Final answer
    x = 337,522,169.10

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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.