Finding the Fourth Proportional to 7,485,866.90, 11,207,805.15 and 7,275,914.90
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Solution
The fourth proportional to 7,485,866.90, 11,207,805.15 and 7,275,914.90 is: 10,893,465.99
Step by Step Solution
- Step 1: Write the proportion equation
7,485,866.90 : 11,207,805.15 = 7,275,914.90 : x - Step 2: Convert to fraction form
7,485,866.90/11,207,805.15 = 7,275,914.90/x - Step 3: Cross multiply
7,485,866.90x = 11,207,805.15 × 7,275,914.90 - Step 4: Simplify right side
7,485,866.90x = 81,547,036,487,181.73 - Step 5: Solve for x
x = 81,547,036,487,181.73/7,485,866.90 - Step 6: Final answer
x = 10,893,465.99
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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.