Finding the Fourth Proportional to 7,438,208.18, 11,152,218.69 and 3,787,872.06
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Solution
The fourth proportional to 7,438,208.18, 11,152,218.69 and 3,787,872.06 is: 5,679,214.21
Step by Step Solution
- Step 1: Write the proportion equation
7,438,208.18 : 11,152,218.69 = 3,787,872.06 : x - Step 2: Convert to fraction form
7,438,208.18/11,152,218.69 = 3,787,872.06/x - Step 3: Cross multiply
7,438,208.18x = 11,152,218.69 × 3,787,872.06 - Step 4: Simplify right side
7,438,208.18x = 42,243,177,582,860.80 - Step 5: Solve for x
x = 42,243,177,582,860.80/7,438,208.18 - Step 6: Final answer
x = 5,679,214.21
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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.