Finding the Fourth Proportional to 3,833,957.16, 5,290,599.08 and 2,115,106.36
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Solution
The fourth proportional to 3,833,957.16, 5,290,599.08 and 2,115,106.36 is: 2,918,702.35
Step by Step Solution
- Step 1: Write the proportion equation
3,833,957.16 : 5,290,599.08 = 2,115,106.36 : x - Step 2: Convert to fraction form
3,833,957.16/5,290,599.08 = 2,115,106.36/x - Step 3: Cross multiply
3,833,957.16x = 5,290,599.08 × 2,115,106.36 - Step 4: Simplify right side
3,833,957.16x = 11,190,179,762,318.15 - Step 5: Solve for x
x = 11,190,179,762,318.15/3,833,957.16 - Step 6: Final answer
x = 2,918,702.35
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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.