Finding the Fourth Proportional to 6,464,840.74, 8,912,207.10 and 5,085,787.58
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Solution
The fourth proportional to 6,464,840.74, 8,912,207.10 and 5,085,787.58 is: 7,011,091.84
Step by Step Solution
- Step 1: Write the proportion equation
6,464,840.74 : 8,912,207.10 = 5,085,787.58 : x - Step 2: Convert to fraction form
6,464,840.74/8,912,207.10 = 5,085,787.58/x - Step 3: Cross multiply
6,464,840.74x = 8,912,207.10 × 5,085,787.58 - Step 4: Simplify right side
6,464,840.74x = 45,325,592,179,567.82 - Step 5: Solve for x
x = 45,325,592,179,567.82/6,464,840.74 - Step 6: Final answer
x = 7,011,091.84
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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.