Finding the Fourth Proportional to 129,154,144.23, 178,227,585.30 and 76,247,893.92
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Solution
The fourth proportional to 129,154,144.23, 178,227,585.30 and 76,247,893.92 is: 105,219,062.84
Step by Step Solution
- Step 1: Write the proportion equation
129,154,144.23 : 178,227,585.30 = 76,247,893.92 : x - Step 2: Convert to fraction form
129,154,144.23/178,227,585.30 = 76,247,893.92/x - Step 3: Cross multiply
129,154,144.23x = 178,227,585.30 × 76,247,893.92 - Step 4: Simplify right side
129,154,144.23x = 13,589,478,017,572,152 - Step 5: Solve for x
x = 13,589,478,017,572,152/129,154,144.23 - Step 6: Final answer
x = 105,219,062.84
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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.