Home / 513,363,633.81-769,990,861.75-144,889,475.73

Finding the Fourth Proportional to 513,363,633.81, 769,990,861.75 and 144,889,475.73

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Solution

The fourth proportional to 513,363,633.81, 769,990,861.75 and 144,889,475.73 is: 217,318,806.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,363,633.81 : 769,990,861.75 = 144,889,475.73 : x
  2. Step 2: Convert to fraction form
    513,363,633.81/769,990,861.75 = 144,889,475.73/x
  3. Step 3: Cross multiply
    513,363,633.81x = 769,990,861.75 × 144,889,475.73
  4. Step 4: Simplify right side
    513,363,633.81x = 111,563,572,275,848,400
  5. Step 5: Solve for x
    x = 111,563,572,275,848,400/513,363,633.81
  6. Step 6: Final answer
    x = 217,318,806.65

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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.