Finding the Fourth Proportional to 19,186,531.81, 26,480,114.12 and 12,214,982.30
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Solution
The fourth proportional to 19,186,531.81, 26,480,114.12 and 12,214,982.30 is: 16,858,394.65
Step by Step Solution
- Step 1: Write the proportion equation
19,186,531.81 : 26,480,114.12 = 12,214,982.30 : x - Step 2: Convert to fraction form
19,186,531.81/26,480,114.12 = 12,214,982.30/x - Step 3: Cross multiply
19,186,531.81x = 26,480,114.12 × 12,214,982.30 - Step 4: Simplify right side
19,186,531.81x = 323,454,125,175,916.94 - Step 5: Solve for x
x = 323,454,125,175,916.94/19,186,531.81 - Step 6: Final answer
x = 16,858,394.65
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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.