Finding the Fourth Proportional to 28,790,490.32, 39,721,175.63 and 16,391,811.11
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Solution
The fourth proportional to 28,790,490.32, 39,721,175.63 and 16,391,811.11 is: 22,615,176.07
Step by Step Solution
- Step 1: Write the proportion equation
28,790,490.32 : 39,721,175.63 = 16,391,811.11 : x - Step 2: Convert to fraction form
28,790,490.32/39,721,175.63 = 16,391,811.11/x - Step 3: Cross multiply
28,790,490.32x = 39,721,175.63 × 16,391,811.11 - Step 4: Simplify right side
28,790,490.32x = 651,102,007,967,696.62 - Step 5: Solve for x
x = 651,102,007,967,696.62/28,790,490.32 - Step 6: Final answer
x = 22,615,176.07
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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.