Finding the Fourth Proportional to 18,390,638.88, 27,588,248.40 and 6,259,170.06
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Solution
The fourth proportional to 18,390,638.88, 27,588,248.40 and 6,259,170.06 is: 9,389,534.51
Step by Step Solution
- Step 1: Write the proportion equation
18,390,638.88 : 27,588,248.40 = 6,259,170.06 : x - Step 2: Convert to fraction form
18,390,638.88/27,588,248.40 = 6,259,170.06/x - Step 3: Cross multiply
18,390,638.88x = 27,588,248.40 × 6,259,170.06 - Step 4: Simplify right side
18,390,638.88x = 172,679,538,393,122.88 - Step 5: Solve for x
x = 172,679,538,393,122.88/18,390,638.88 - Step 6: Final answer
x = 9,389,534.51
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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.