Finding the Fourth Proportional to 28,645,436.16, 39,531,206.16 and 15,593,070.24
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Solution
The fourth proportional to 28,645,436.16, 39,531,206.16 and 15,593,070.24 is: 21,518,711.42
Step by Step Solution
- Step 1: Write the proportion equation
28,645,436.16 : 39,531,206.16 = 15,593,070.24 : x - Step 2: Convert to fraction form
28,645,436.16/39,531,206.16 = 15,593,070.24/x - Step 3: Cross multiply
28,645,436.16x = 39,531,206.16 × 15,593,070.24 - Step 4: Simplify right side
28,645,436.16x = 616,412,874,324,800.62 - Step 5: Solve for x
x = 616,412,874,324,800.62/28,645,436.16 - Step 6: Final answer
x = 21,518,711.42
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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.