Home / 409,318,478.20-613,977,717.30-225,014,739.40

Finding the Fourth Proportional to 409,318,478.20, 613,977,717.30 and 225,014,739.40

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Solution

The fourth proportional to 409,318,478.20, 613,977,717.30 and 225,014,739.40 is: 337,522,109.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,318,478.20 : 613,977,717.30 = 225,014,739.40 : x
  2. Step 2: Convert to fraction form
    409,318,478.20/613,977,717.30 = 225,014,739.40/x
  3. Step 3: Cross multiply
    409,318,478.20x = 613,977,717.30 × 225,014,739.40
  4. Step 4: Simplify right side
    409,318,478.20x = 138,154,036,055,666,368
  5. Step 5: Solve for x
    x = 138,154,036,055,666,368/409,318,478.20
  6. Step 6: Final answer
    x = 337,522,109.10

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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.