Finding the Fourth Proportional to 20,864,400.54, 31,274,511.99 and 7,018,178.00
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Solution
The fourth proportional to 20,864,400.54, 31,274,511.99 and 7,018,178.00 is: 10,519,836.96
Step by Step Solution
- Step 1: Write the proportion equation
20,864,400.54 : 31,274,511.99 = 7,018,178.00 : x - Step 2: Convert to fraction form
20,864,400.54/31,274,511.99 = 7,018,178.00/x - Step 3: Cross multiply
20,864,400.54x = 31,274,511.99 × 7,018,178.00 - Step 4: Simplify right side
20,864,400.54x = 219,490,091,852,581.66 - Step 5: Solve for x
x = 219,490,091,852,581.66/20,864,400.54 - Step 6: Final answer
x = 10,519,836.96
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.