Finding the Fourth Proportional to 12,635,405.02, 17,436,862.20 and 7,129,946.62
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Solution
The fourth proportional to 12,635,405.02, 17,436,862.20 and 7,129,946.62 is: 9,839,328.18
Step by Step Solution
- Step 1: Write the proportion equation
12,635,405.02 : 17,436,862.20 = 7,129,946.62 : x - Step 2: Convert to fraction form
12,635,405.02/17,436,862.20 = 7,129,946.62/x - Step 3: Cross multiply
12,635,405.02x = 17,436,862.20 × 7,129,946.62 - Step 4: Simplify right side
12,635,405.02x = 124,323,896,706,295.77 - Step 5: Solve for x
x = 124,323,896,706,295.77/12,635,405.02 - Step 6: Final answer
x = 9,839,328.18
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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.