Finding the Fourth Proportional to 21,643,512, 29,868,985.44 and 11,985,720
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Solution
The fourth proportional to 21,643,512, 29,868,985.44 and 11,985,720 is: 16,540,813.53
Step by Step Solution
- Step 1: Write the proportion equation
21,643,512 : 29,868,985.44 = 11,985,720 : x - Step 2: Convert to fraction form
21,643,512/29,868,985.44 = 11,985,720/x - Step 3: Cross multiply
21,643,512x = 29,868,985.44 × 11,985,720 - Step 4: Simplify right side
21,643,512x = 358,001,296,167,916.81 - Step 5: Solve for x
x = 358,001,296,167,916.81/21,643,512 - Step 6: Final answer
x = 16,540,813.53
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.