Finding the Fourth Proportional to 20,255,943.11, 27,953,199.32 and 10,963,511.48
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Solution
The fourth proportional to 20,255,943.11, 27,953,199.32 and 10,963,511.48 is: 15,129,644.67
Step by Step Solution
- Step 1: Write the proportion equation
20,255,943.11 : 27,953,199.32 = 10,963,511.48 : x - Step 2: Convert to fraction form
20,255,943.11/27,953,199.32 = 10,963,511.48/x - Step 3: Cross multiply
20,255,943.11x = 27,953,199.32 × 10,963,511.48 - Step 4: Simplify right side
20,255,943.11x = 306,465,221,744,840 - Step 5: Solve for x
x = 306,465,221,744,840/20,255,943.11 - Step 6: Final answer
x = 15,129,644.67
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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.