Finding the Fourth Proportional to 7,046,639.36, 9,724,196.90 and 4,146,218.09
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Solution
The fourth proportional to 7,046,639.36, 9,724,196.90 and 4,146,218.09 is: 5,721,683.63
Step by Step Solution
- Step 1: Write the proportion equation
7,046,639.36 : 9,724,196.90 = 4,146,218.09 : x - Step 2: Convert to fraction form
7,046,639.36/9,724,196.90 = 4,146,218.09/x - Step 3: Cross multiply
7,046,639.36x = 9,724,196.90 × 4,146,218.09 - Step 4: Simplify right side
7,046,639.36x = 40,318,641,028,149.84 - Step 5: Solve for x
x = 40,318,641,028,149.84/7,046,639.36 - Step 6: Final answer
x = 5,721,683.63
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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.