Finding the Fourth Proportional to 19,937,328.27, 27,518,632.17 and 12,985,329.58
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Solution
The fourth proportional to 19,937,328.27, 27,518,632.17 and 12,985,329.58 is: 17,923,088.97
Step by Step Solution
- Step 1: Write the proportion equation
19,937,328.27 : 27,518,632.17 = 12,985,329.58 : x - Step 2: Convert to fraction form
19,937,328.27/27,518,632.17 = 12,985,329.58/x - Step 3: Cross multiply
19,937,328.27x = 27,518,632.17 × 12,985,329.58 - Step 4: Simplify right side
19,937,328.27x = 357,338,508,318,240.62 - Step 5: Solve for x
x = 357,338,508,318,240.62/19,937,328.27 - Step 6: Final answer
x = 17,923,088.97
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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.