Finding the Fourth Proportional to 10,331,880.28, 14,257,637.01 and 5,685,230.80
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Solution
The fourth proportional to 10,331,880.28, 14,257,637.01 and 5,685,230.80 is: 7,845,421.63
Step by Step Solution
- Step 1: Write the proportion equation
10,331,880.28 : 14,257,637.01 = 5,685,230.80 : x - Step 2: Convert to fraction form
10,331,880.28/14,257,637.01 = 5,685,230.80/x - Step 3: Cross multiply
10,331,880.28x = 14,257,637.01 × 5,685,230.80 - Step 4: Simplify right side
10,331,880.28x = 81,057,957,064,471.91 - Step 5: Solve for x
x = 81,057,957,064,471.91/10,331,880.28 - Step 6: Final answer
x = 7,845,421.63
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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.