Finding the Fourth Proportional to 28,686,549.74, 39,588,842.16 and 16,131,555.95
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Solution
The fourth proportional to 28,686,549.74, 39,588,842.16 and 16,131,555.95 is: 22,262,336.46
Step by Step Solution
- Step 1: Write the proportion equation
28,686,549.74 : 39,588,842.16 = 16,131,555.95 : x - Step 2: Convert to fraction form
28,686,549.74/39,588,842.16 = 16,131,555.95/x - Step 3: Cross multiply
28,686,549.74x = 39,588,842.16 × 16,131,555.95 - Step 4: Simplify right side
28,686,549.74x = 638,629,622,101,814.62 - Step 5: Solve for x
x = 638,629,622,101,814.62/28,686,549.74 - Step 6: Final answer
x = 22,262,336.46
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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.