Finding the Fourth Proportional to 18,527,526.90, 27,792,378.99 and 7,168,035.06
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Solution
The fourth proportional to 18,527,526.90, 27,792,378.99 and 7,168,035.06 is: 10,752,473.77
Step by Step Solution
- Step 1: Write the proportion equation
18,527,526.90 : 27,792,378.99 = 7,168,035.06 : x - Step 2: Convert to fraction form
18,527,526.90/27,792,378.99 = 7,168,035.06/x - Step 3: Cross multiply
18,527,526.90x = 27,792,378.99 × 7,168,035.06 - Step 4: Simplify right side
18,527,526.90x = 199,216,747,001,127.38 - Step 5: Solve for x
x = 199,216,747,001,127.38/18,527,526.90 - Step 6: Final answer
x = 10,752,473.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.