Finding the Fourth Proportional to 4,411,909.09, 6,615,982.81 and 1,678,990.15
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Solution
The fourth proportional to 4,411,909.09, 6,615,982.81 and 1,678,990.15 is: 2,517,769.46
Step by Step Solution
- Step 1: Write the proportion equation
4,411,909.09 : 6,615,982.81 = 1,678,990.15 : x - Step 2: Convert to fraction form
4,411,909.09/6,615,982.81 = 1,678,990.15/x - Step 3: Cross multiply
4,411,909.09x = 6,615,982.81 × 1,678,990.15 - Step 4: Simplify right side
4,411,909.09x = 11,108,169,970,559.32 - Step 5: Solve for x
x = 11,108,169,970,559.32/4,411,909.09 - Step 6: Final answer
x = 2,517,769.46
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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.