Finding the Fourth Proportional to 20,103,553.64, 27,759,658.90 and 18,644,750.12
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Solution
The fourth proportional to 20,103,553.64, 27,759,658.90 and 18,644,750.12 is: 25,745,294.23
Step by Step Solution
- Step 1: Write the proportion equation
20,103,553.64 : 27,759,658.90 = 18,644,750.12 : x - Step 2: Convert to fraction form
20,103,553.64/27,759,658.90 = 18,644,750.12/x - Step 3: Cross multiply
20,103,553.64x = 27,759,658.90 × 18,644,750.12 - Step 4: Simplify right side
20,103,553.64x = 517,571,903,606,934.06 - Step 5: Solve for x
x = 517,571,903,606,934.06/20,103,553.64 - Step 6: Final answer
x = 25,745,294.23
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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.