Finding the Fourth Proportional to 19,953,531.15, 29,934,725.40 and 9,168,231.30
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Solution
The fourth proportional to 19,953,531.15, 29,934,725.40 and 9,168,231.30 is: 13,754,381.83
Step by Step Solution
- Step 1: Write the proportion equation
19,953,531.15 : 29,934,725.40 = 9,168,231.30 : x - Step 2: Convert to fraction form
19,953,531.15/29,934,725.40 = 9,168,231.30/x - Step 3: Cross multiply
19,953,531.15x = 29,934,725.40 × 9,168,231.30 - Step 4: Simplify right side
19,953,531.15x = 274,448,486,369,185.03 - Step 5: Solve for x
x = 274,448,486,369,185.03/19,953,531.15 - Step 6: Final answer
x = 13,754,381.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.