Finding the Fourth Proportional to 3,911,971.78, 5,398,440.62 and 2,169,359.96
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Solution
The fourth proportional to 3,911,971.78, 5,398,440.62 and 2,169,359.96 is: 2,993,672.14
Step by Step Solution
- Step 1: Write the proportion equation
3,911,971.78 : 5,398,440.62 = 2,169,359.96 : x - Step 2: Convert to fraction form
3,911,971.78/5,398,440.62 = 2,169,359.96/x - Step 3: Cross multiply
3,911,971.78x = 5,398,440.62 × 2,169,359.96 - Step 4: Simplify right side
3,911,971.78x = 11,711,160,901,829.22 - Step 5: Solve for x
x = 11,711,160,901,829.22/3,911,971.78 - Step 6: Final answer
x = 2,993,672.14
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.