Finding the Fourth Proportional to 5,724,142.92, 7,890,995.70 and 3,999,909.96
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Solution
The fourth proportional to 5,724,142.92, 7,890,995.70 and 3,999,909.96 is: 5,514,060.84
Step by Step Solution
- Step 1: Write the proportion equation
5,724,142.92 : 7,890,995.70 = 3,999,909.96 : x - Step 2: Convert to fraction form
5,724,142.92/7,890,995.70 = 3,999,909.96/x - Step 3: Cross multiply
5,724,142.92x = 7,890,995.70 × 3,999,909.96 - Step 4: Simplify right side
5,724,142.92x = 31,563,272,294,747.17 - Step 5: Solve for x
x = 31,563,272,294,747.17/5,724,142.92 - Step 6: Final answer
x = 5,514,060.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.