Finding the Fourth Proportional to 996,357,940.20, 1,495,387,215.90 and 444,509,605.80
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Solution
The fourth proportional to 996,357,940.20, 1,495,387,215.90 and 444,509,605.80 is: 667,143,759.32
Step by Step Solution
- Step 1: Write the proportion equation
996,357,940.20 : 1,495,387,215.90 = 444,509,605.80 : x - Step 2: Convert to fraction form
996,357,940.20/1,495,387,215.90 = 444,509,605.80/x - Step 3: Cross multiply
996,357,940.20x = 1,495,387,215.90 × 444,509,605.80 - Step 4: Simplify right side
996,357,940.20x = 664,713,981,858,068,608 - Step 5: Solve for x
x = 664,713,981,858,068,608/996,357,940.20 - Step 6: Final answer
x = 667,143,759.32
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1.5x scale
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.