Finding the Fourth Proportional to 20,255,940.68, 27,953,196.12 and 10,963,509.23
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Solution
The fourth proportional to 20,255,940.68, 27,953,196.12 and 10,963,509.23 is: 15,129,641.65
Step by Step Solution
- Step 1: Write the proportion equation
20,255,940.68 : 27,953,196.12 = 10,963,509.23 : x - Step 2: Convert to fraction form
20,255,940.68/27,953,196.12 = 10,963,509.23/x - Step 3: Cross multiply
20,255,940.68x = 27,953,196.12 × 10,963,509.23 - Step 4: Simplify right side
20,255,940.68x = 306,465,123,739,503.19 - Step 5: Solve for x
x = 306,465,123,739,503.19/20,255,940.68 - Step 6: Final answer
x = 15,129,641.65
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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.