Finding the Fourth Proportional to 7,158,071.84, 9,874,374.96 and 4,255,398.08
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Solution
The fourth proportional to 7,158,071.84, 9,874,374.96 and 4,255,398.08 is: 5,870,211.59
Step by Step Solution
- Step 1: Write the proportion equation
7,158,071.84 : 9,874,374.96 = 4,255,398.08 : x - Step 2: Convert to fraction form
7,158,071.84/9,874,374.96 = 4,255,398.08/x - Step 3: Cross multiply
7,158,071.84x = 9,874,374.96 × 4,255,398.08 - Step 4: Simplify right side
7,158,071.84x = 42,019,396,245,984.08 - Step 5: Solve for x
x = 42,019,396,245,984.08/7,158,071.84 - Step 6: Final answer
x = 5,870,211.59
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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.