Finding the Fourth Proportional to 28,662,278.18, 39,553,668.50 and 15,609,755.06
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Solution
The fourth proportional to 28,662,278.18, 39,553,668.50 and 15,609,755.06 is: 21,541,312.00
Step by Step Solution
- Step 1: Write the proportion equation
28,662,278.18 : 39,553,668.50 = 15,609,755.06 : x - Step 2: Convert to fraction form
28,662,278.18/39,553,668.50 = 15,609,755.06/x - Step 3: Cross multiply
28,662,278.18x = 39,553,668.50 × 15,609,755.06 - Step 4: Simplify right side
28,662,278.18x = 617,423,077,009,437.62 - Step 5: Solve for x
x = 617,423,077,009,437.62/28,662,278.18 - Step 6: Final answer
x = 21,541,312.00
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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.