Finding the Fourth Proportional to 6,664,407.12, 9,989,880.66 and 2,623,731.12
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Solution
The fourth proportional to 6,664,407.12, 9,989,880.66 and 2,623,731.12 is: 3,932,947.12
Step by Step Solution
- Step 1: Write the proportion equation
6,664,407.12 : 9,989,880.66 = 2,623,731.12 : x - Step 2: Convert to fraction form
6,664,407.12/9,989,880.66 = 2,623,731.12/x - Step 3: Cross multiply
6,664,407.12x = 9,989,880.66 × 2,623,731.12 - Step 4: Simplify right side
6,664,407.12x = 26,210,760,772,728.14 - Step 5: Solve for x
x = 26,210,760,772,728.14/6,664,407.12 - Step 6: Final answer
x = 3,932,947.12
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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.