Finding the Fourth Proportional to 6,430,553.84, 9,643,799.21 and 2,111,892.44
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Solution
The fourth proportional to 6,430,553.84, 9,643,799.21 and 2,111,892.44 is: 3,167,171.46
Step by Step Solution
- Step 1: Write the proportion equation
6,430,553.84 : 9,643,799.21 = 2,111,892.44 : x - Step 2: Convert to fraction form
6,430,553.84/9,643,799.21 = 2,111,892.44/x - Step 3: Cross multiply
6,430,553.84x = 9,643,799.21 × 2,111,892.44 - Step 4: Simplify right side
6,430,553.84x = 20,366,666,585,698.52 - Step 5: Solve for x
x = 20,366,666,585,698.52/6,430,553.84 - Step 6: Final answer
x = 3,167,171.46
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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.