Finding the Fourth Proportional to 20,710,580.70, 28,580,632.84 and 11,543,026.62
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Solution
The fourth proportional to 20,710,580.70, 28,580,632.84 and 11,543,026.62 is: 15,929,394.28
Step by Step Solution
- Step 1: Write the proportion equation
20,710,580.70 : 28,580,632.84 = 11,543,026.62 : x - Step 2: Convert to fraction form
20,710,580.70/28,580,632.84 = 11,543,026.62/x - Step 3: Cross multiply
20,710,580.70x = 28,580,632.84 × 11,543,026.62 - Step 4: Simplify right side
20,710,580.70x = 329,907,005,688,566.19 - Step 5: Solve for x
x = 329,907,005,688,566.19/20,710,580.70 - Step 6: Final answer
x = 15,929,394.28
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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.