Finding the Fourth Proportional to 20,808,347.99, 28,696,554.65 and 17,867,250.95
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Solution
The fourth proportional to 20,808,347.99, 28,696,554.65 and 17,867,250.95 is: 24,640,521.37
Step by Step Solution
- Step 1: Write the proportion equation
20,808,347.99 : 28,696,554.65 = 17,867,250.95 : x - Step 2: Convert to fraction form
20,808,347.99/28,696,554.65 = 17,867,250.95/x - Step 3: Cross multiply
20,808,347.99x = 28,696,554.65 × 17,867,250.95 - Step 4: Simplify right side
20,808,347.99x = 512,728,543,233,124.75 - Step 5: Solve for x
x = 512,728,543,233,124.75/20,808,347.99 - Step 6: Final answer
x = 24,640,521.37
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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.