Finding the Fourth Proportional to 18,985,129.76, 26,199,479.93 and 10,283,302.37
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Solution
The fourth proportional to 18,985,129.76, 26,199,479.93 and 10,283,302.37 is: 14,190,957.73
Step by Step Solution
- Step 1: Write the proportion equation
18,985,129.76 : 26,199,479.93 = 10,283,302.37 : x - Step 2: Convert to fraction form
18,985,129.76/26,199,479.93 = 10,283,302.37/x - Step 3: Cross multiply
18,985,129.76x = 26,199,479.93 × 10,283,302.37 - Step 4: Simplify right side
18,985,129.76x = 269,417,173,874,522.53 - Step 5: Solve for x
x = 269,417,173,874,522.53/18,985,129.76 - Step 6: Final answer
x = 14,190,957.73
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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.