Finding the Fourth Proportional to 27,921,825.80, 38,537,638.62 and 18,118,505.96
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Solution
The fourth proportional to 27,921,825.80, 38,537,638.62 and 18,118,505.96 is: 25,007,119.52
Step by Step Solution
- Step 1: Write the proportion equation
27,921,825.80 : 38,537,638.62 = 18,118,505.96 : x - Step 2: Convert to fraction form
27,921,825.80/38,537,638.62 = 18,118,505.96/x - Step 3: Cross multiply
27,921,825.80x = 38,537,638.62 × 18,118,505.96 - Step 4: Simplify right side
27,921,825.80x = 698,244,435,020,796.12 - Step 5: Solve for x
x = 698,244,435,020,796.12/27,921,825.80 - Step 6: Final answer
x = 25,007,119.52
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.