Finding the Fourth Proportional to 13,415,634.16, 18,515,248.06 and 7,616,293.36
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Solution
The fourth proportional to 13,415,634.16, 18,515,248.06 and 7,616,293.36 is: 10,511,434.58
Step by Step Solution
- Step 1: Write the proportion equation
13,415,634.16 : 18,515,248.06 = 7,616,293.36 : x - Step 2: Convert to fraction form
13,415,634.16/18,515,248.06 = 7,616,293.36/x - Step 3: Cross multiply
13,415,634.16x = 18,515,248.06 × 7,616,293.36 - Step 4: Simplify right side
13,415,634.16x = 141,017,560,858,130.88 - Step 5: Solve for x
x = 141,017,560,858,130.88/13,415,634.16 - Step 6: Final answer
x = 10,511,434.58
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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.