Finding the Fourth Proportional to 18,569,044.67, 27,817,332.86 and 12,159,866.21
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Solution
The fourth proportional to 18,569,044.67, 27,817,332.86 and 12,159,866.21 is: 18,216,071.53
Step by Step Solution
- Step 1: Write the proportion equation
18,569,044.67 : 27,817,332.86 = 12,159,866.21 : x - Step 2: Convert to fraction form
18,569,044.67/27,817,332.86 = 12,159,866.21/x - Step 3: Cross multiply
18,569,044.67x = 27,817,332.86 × 12,159,866.21 - Step 4: Simplify right side
18,569,044.67x = 338,255,045,787,949.69 - Step 5: Solve for x
x = 338,255,045,787,949.69/18,569,044.67 - Step 6: Final answer
x = 18,216,071.53
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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.