Finding the Fourth Proportional to 19,197,114.70, 28,795,672.05 and 18,665,673.70
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Solution
The fourth proportional to 19,197,114.70, 28,795,672.05 and 18,665,673.70 is: 27,998,510.55
Step by Step Solution
- Step 1: Write the proportion equation
19,197,114.70 : 28,795,672.05 = 18,665,673.70 : x - Step 2: Convert to fraction form
19,197,114.70/28,795,672.05 = 18,665,673.70/x - Step 3: Cross multiply
19,197,114.70x = 28,795,672.05 × 18,665,673.70 - Step 4: Simplify right side
19,197,114.70x = 537,490,618,457,510.06 - Step 5: Solve for x
x = 537,490,618,457,510.06/19,197,114.70 - Step 6: Final answer
x = 27,998,510.55
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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.