Home / 513,363,632.81-769,990,860.25-144,889,474.73

Finding the Fourth Proportional to 513,363,632.81, 769,990,860.25 and 144,889,474.73

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Solution

The fourth proportional to 513,363,632.81, 769,990,860.25 and 144,889,474.73 is: 217,318,805.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,363,632.81 : 769,990,860.25 = 144,889,474.73 : x
  2. Step 2: Convert to fraction form
    513,363,632.81/769,990,860.25 = 144,889,474.73/x
  3. Step 3: Cross multiply
    513,363,632.81x = 769,990,860.25 × 144,889,474.73
  4. Step 4: Simplify right side
    513,363,632.81x = 111,563,571,284,311,152
  5. Step 5: Solve for x
    x = 111,563,571,284,311,152/513,363,632.81
  6. Step 6: Final answer
    x = 217,318,805.14

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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.