Finding the Fourth Proportional to 7,046,636.36, 9,724,192.76 and 4,146,215.09
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Solution
The fourth proportional to 7,046,636.36, 9,724,192.76 and 4,146,215.09 is: 5,721,679.49
Step by Step Solution
- Step 1: Write the proportion equation
7,046,636.36 : 9,724,192.76 = 4,146,215.09 : x - Step 2: Convert to fraction form
7,046,636.36/9,724,192.76 = 4,146,215.09/x - Step 3: Cross multiply
7,046,636.36x = 9,724,192.76 × 4,146,215.09 - Step 4: Simplify right side
7,046,636.36x = 40,318,594,690,228.71 - Step 5: Solve for x
x = 40,318,594,690,228.71/7,046,636.36 - Step 6: Final answer
x = 5,721,679.49
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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.