Finding the Fourth Proportional to 4,609,391.76, 6,912,316.16 and 3,185,129.88
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Solution
The fourth proportional to 4,609,391.76, 6,912,316.16 and 3,185,129.88 is: 4,776,470.71
Step by Step Solution
- Step 1: Write the proportion equation
4,609,391.76 : 6,912,316.16 = 3,185,129.88 : x - Step 2: Convert to fraction form
4,609,391.76/6,912,316.16 = 3,185,129.88/x - Step 3: Cross multiply
4,609,391.76x = 6,912,316.16 × 3,185,129.88 - Step 4: Simplify right side
4,609,391.76x = 22,016,624,725,297.21 - Step 5: Solve for x
x = 22,016,624,725,297.21/4,609,391.76 - Step 6: Final answer
x = 4,776,470.71
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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.