Finding the Fourth Proportional to 7,074,457.97, 9,762,214.32 and 3,976,489.08
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Solution
The fourth proportional to 7,074,457.97, 9,762,214.32 and 3,976,489.08 is: 5,487,252.71
Step by Step Solution
- Step 1: Write the proportion equation
7,074,457.97 : 9,762,214.32 = 3,976,489.08 : x - Step 2: Convert to fraction form
7,074,457.97/9,762,214.32 = 3,976,489.08/x - Step 3: Cross multiply
7,074,457.97x = 9,762,214.32 × 3,976,489.08 - Step 4: Simplify right side
7,074,457.97x = 38,819,338,640,099.62 - Step 5: Solve for x
x = 38,819,338,640,099.62/7,074,457.97 - Step 6: Final answer
x = 5,487,252.71
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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.