Finding the Fourth Proportional to 9,990,973.44, 13,786,295.04 and 5,639,523.84
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Solution
The fourth proportional to 9,990,973.44, 13,786,295.04 and 5,639,523.84 is: 7,781,838.28
Step by Step Solution
- Step 1: Write the proportion equation
9,990,973.44 : 13,786,295.04 = 5,639,523.84 : x - Step 2: Convert to fraction form
9,990,973.44/13,786,295.04 = 5,639,523.84/x - Step 3: Cross multiply
9,990,973.44x = 13,786,295.04 × 5,639,523.84 - Step 4: Simplify right side
9,990,973.44x = 77,748,139,543,353.75 - Step 5: Solve for x
x = 77,748,139,543,353.75/9,990,973.44 - Step 6: Final answer
x = 7,781,838.28
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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.