Finding the Fourth Proportional to 29,612,742.42, 40,875,858.09 and 20,350,971.75
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Solution
The fourth proportional to 29,612,742.42, 40,875,858.09 and 20,350,971.75 is: 28,091,401.38
Step by Step Solution
- Step 1: Write the proportion equation
29,612,742.42 : 40,875,858.09 = 20,350,971.75 : x - Step 2: Convert to fraction form
29,612,742.42/40,875,858.09 = 20,350,971.75/x - Step 3: Cross multiply
29,612,742.42x = 40,875,858.09 × 20,350,971.75 - Step 4: Simplify right side
29,612,742.42x = 831,863,433,246,599 - Step 5: Solve for x
x = 831,863,433,246,599/29,612,742.42 - Step 6: Final answer
x = 28,091,401.38
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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.