Home / 550,578,138.40-825,867,207.60-305,690,125.60

Finding the Fourth Proportional to 550,578,138.40, 825,867,207.60 and 305,690,125.60

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Solution

The fourth proportional to 550,578,138.40, 825,867,207.60 and 305,690,125.60 is: 458,535,188.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,578,138.40 : 825,867,207.60 = 305,690,125.60 : x
  2. Step 2: Convert to fraction form
    550,578,138.40/825,867,207.60 = 305,690,125.60/x
  3. Step 3: Cross multiply
    550,578,138.40x = 825,867,207.60 × 305,690,125.60
  4. Step 4: Simplify right side
    550,578,138.40x = 252,459,450,420,165,312
  5. Step 5: Solve for x
    x = 252,459,450,420,165,312/550,578,138.40
  6. Step 6: Final answer
    x = 458,535,188.40

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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.