Finding the Fourth Proportional to 121,747,402.57, 168,006,912.74 and 65,991,625.88
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Solution
The fourth proportional to 121,747,402.57, 168,006,912.74 and 65,991,625.88 is: 91,066,003.02
Step by Step Solution
- Step 1: Write the proportion equation
121,747,402.57 : 168,006,912.74 = 65,991,625.88 : x - Step 2: Convert to fraction form
121,747,402.57/168,006,912.74 = 65,991,625.88/x - Step 3: Cross multiply
121,747,402.57x = 168,006,912.74 × 65,991,625.88 - Step 4: Simplify right side
121,747,402.57x = 11,087,049,329,951,852 - Step 5: Solve for x
x = 11,087,049,329,951,852/121,747,402.57 - Step 6: Final answer
x = 91,066,003.02
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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.