Finding the Fourth Proportional to 3,889,572.84, 5,368,151.52 and 2,170,804.06
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Solution
The fourth proportional to 3,889,572.84, 5,368,151.52 and 2,170,804.06 is: 2,996,011.54
Step by Step Solution
- Step 1: Write the proportion equation
3,889,572.84 : 5,368,151.52 = 2,170,804.06 : x - Step 2: Convert to fraction form
3,889,572.84/5,368,151.52 = 2,170,804.06/x - Step 3: Cross multiply
3,889,572.84x = 5,368,151.52 × 2,170,804.06 - Step 4: Simplify right side
3,889,572.84x = 11,653,205,114,311.17 - Step 5: Solve for x
x = 11,653,205,114,311.17/3,889,572.84 - Step 6: Final answer
x = 2,996,011.54
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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.