Finding the Fourth Proportional to 6,430,661.84, 8,874,290.64 and 3,490,479.15
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Solution
The fourth proportional to 6,430,661.84, 8,874,290.64 and 3,490,479.15 is: 4,816,848.90
Step by Step Solution
- Step 1: Write the proportion equation
6,430,661.84 : 8,874,290.64 = 3,490,479.15 : x - Step 2: Convert to fraction form
6,430,661.84/8,874,290.64 = 3,490,479.15/x - Step 3: Cross multiply
6,430,661.84x = 8,874,290.64 × 3,490,479.15 - Step 4: Simplify right side
6,430,661.84x = 30,975,526,449,960.16 - Step 5: Solve for x
x = 30,975,526,449,960.16/6,430,661.84 - Step 6: Final answer
x = 4,816,848.90
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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.