Finding the Fourth Proportional to 6,381,496.89, 8,809,717.68 and 4,927,929.21
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Solution
The fourth proportional to 6,381,496.89, 8,809,717.68 and 4,927,929.21 is: 6,803,053.55
Step by Step Solution
- Step 1: Write the proportion equation
6,381,496.89 : 8,809,717.68 = 4,927,929.21 : x - Step 2: Convert to fraction form
6,381,496.89/8,809,717.68 = 4,927,929.21/x - Step 3: Cross multiply
6,381,496.89x = 8,809,717.68 × 4,927,929.21 - Step 4: Simplify right side
6,381,496.89x = 43,413,665,087,125.43 - Step 5: Solve for x
x = 43,413,665,087,125.43/6,381,496.89 - Step 6: Final answer
x = 6,803,053.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.