Finding the Fourth Proportional to 7,985,709,363.20, 11,979,653,608.19 and 3,326,493,710.09
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Solution
The fourth proportional to 7,985,709,363.20, 11,979,653,608.19 and 3,326,493,710.09 is: 4,990,194,429.11
Step by Step Solution
- Step 1: Write the proportion equation
7,985,709,363.20 : 11,979,653,608.19 = 3,326,493,710.09 : x - Step 2: Convert to fraction form
7,985,709,363.20/11,979,653,608.19 = 3,326,493,710.09/x - Step 3: Cross multiply
7,985,709,363.20x = 11,979,653,608.19 × 3,326,493,710.09 - Step 4: Simplify right side
7,985,709,363.20x = 39,850,242,376,740,945,920 - Step 5: Solve for x
x = 39,850,242,376,740,945,920/7,985,709,363.20 - Step 6: Final answer
x = 4,990,194,429.11
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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.