Finding the Fourth Proportional to 7,655,805.60, 11,471,898.60 and 6,640,162.80
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Solution
The fourth proportional to 7,655,805.60, 11,471,898.60 and 6,640,162.80 is: 9,950,001.12
Step by Step Solution
- Step 1: Write the proportion equation
7,655,805.60 : 11,471,898.60 = 6,640,162.80 : x - Step 2: Convert to fraction form
7,655,805.60/11,471,898.60 = 6,640,162.80/x - Step 3: Cross multiply
7,655,805.60x = 11,471,898.60 × 6,640,162.80 - Step 4: Simplify right side
7,655,805.60x = 76,175,274,329,092.08 - Step 5: Solve for x
x = 76,175,274,329,092.08/7,655,805.60 - Step 6: Final answer
x = 9,950,001.12
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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.