Home / 624,880,749.40-862,659,911.10-485,339,081.56

Finding the Fourth Proportional to 624,880,749.40, 862,659,911.10 and 485,339,081.56

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Solution

The fourth proportional to 624,880,749.40, 862,659,911.10 and 485,339,081.56 is: 670,019,950.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,880,749.40 : 862,659,911.10 = 485,339,081.56 : x
  2. Step 2: Convert to fraction form
    624,880,749.40/862,659,911.10 = 485,339,081.56/x
  3. Step 3: Cross multiply
    624,880,749.40x = 862,659,911.10 × 485,339,081.56
  4. Step 4: Simplify right side
    624,880,749.40x = 418,682,568,951,905,280
  5. Step 5: Solve for x
    x = 418,682,568,951,905,280/624,880,749.40
  6. Step 6: Final answer
    x = 670,019,950.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.