Finding the Fourth Proportional to 4,940,829.01, 6,812,929.60 and 3,218,756.05
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Solution
The fourth proportional to 4,940,829.01, 6,812,929.60 and 3,218,756.05 is: 4,438,356.06
Step by Step Solution
- Step 1: Write the proportion equation
4,940,829.01 : 6,812,929.60 = 3,218,756.05 : x - Step 2: Convert to fraction form
4,940,829.01/6,812,929.60 = 3,218,756.05/x - Step 3: Cross multiply
4,940,829.01x = 6,812,929.60 × 3,218,756.05 - Step 4: Simplify right side
4,940,829.01x = 21,929,158,368,224.08 - Step 5: Solve for x
x = 21,929,158,368,224.08/4,940,829.01 - Step 6: Final answer
x = 4,438,356.06
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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.