Finding the Fourth Proportional to 31,283,133.12, 43,173,279.36 and 17,348,852.16
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Solution
The fourth proportional to 31,283,133.12, 43,173,279.36 and 17,348,852.16 is: 23,942,833.28
Step by Step Solution
- Step 1: Write the proportion equation
31,283,133.12 : 43,173,279.36 = 17,348,852.16 : x - Step 2: Convert to fraction form
31,283,133.12/43,173,279.36 = 17,348,852.16/x - Step 3: Cross multiply
31,283,133.12x = 43,173,279.36 × 17,348,852.16 - Step 4: Simplify right side
31,283,133.12x = 749,006,840,879,019.38 - Step 5: Solve for x
x = 749,006,840,879,019.38/31,283,133.12 - Step 6: Final answer
x = 23,942,833.28
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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.