Finding the Fourth Proportional to 7,802,215.92, 10,769,221.76 and 4,539,660.80
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Solution
The fourth proportional to 7,802,215.92, 10,769,221.76 and 4,539,660.80 is: 6,265,990.88
Step by Step Solution
- Step 1: Write the proportion equation
7,802,215.92 : 10,769,221.76 = 4,539,660.80 : x - Step 2: Convert to fraction form
7,802,215.92/10,769,221.76 = 4,539,660.80/x - Step 3: Cross multiply
7,802,215.92x = 10,769,221.76 × 4,539,660.80 - Step 4: Simplify right side
7,802,215.92x = 48,888,613,793,834.60 - Step 5: Solve for x
x = 48,888,613,793,834.60/7,802,215.92 - Step 6: Final answer
x = 6,265,990.88
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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.