Home / 1,016,783,999.70-1,525,175,999.55-289,678,233.30

Finding the Fourth Proportional to 1,016,783,999.70, 1,525,175,999.55 and 289,678,233.30

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Solution

The fourth proportional to 1,016,783,999.70, 1,525,175,999.55 and 289,678,233.30 is: 434,517,349.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,783,999.70 : 1,525,175,999.55 = 289,678,233.30 : x
  2. Step 2: Convert to fraction form
    1,016,783,999.70/1,525,175,999.55 = 289,678,233.30/x
  3. Step 3: Cross multiply
    1,016,783,999.70x = 1,525,175,999.55 × 289,678,233.30
  4. Step 4: Simplify right side
    1,016,783,999.70x = 441,810,289,021,205,568
  5. Step 5: Solve for x
    x = 441,810,289,021,205,568/1,016,783,999.70
  6. Step 6: Final answer
    x = 434,517,349.95

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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.