Finding the Fourth Proportional to 7,319,990.93, 10,914,543.61 and 7,118,879.36
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Solution
The fourth proportional to 7,319,990.93, 10,914,543.61 and 7,118,879.36 is: 10,614,674.25
Step by Step Solution
- Step 1: Write the proportion equation
7,319,990.93 : 10,914,543.61 = 7,118,879.36 : x - Step 2: Convert to fraction form
7,319,990.93/10,914,543.61 = 7,118,879.36/x - Step 3: Cross multiply
7,319,990.93x = 10,914,543.61 × 7,118,879.36 - Step 4: Simplify right side
7,319,990.93x = 77,699,319,156,678.98 - Step 5: Solve for x
x = 77,699,319,156,678.98/7,319,990.93 - Step 6: Final answer
x = 10,614,674.25
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.