Finding the Fourth Proportional to 20,269,927.52, 27,972,154.28 and 10,977,422.28
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Solution
The fourth proportional to 20,269,927.52, 27,972,154.28 and 10,977,422.28 is: 15,148,655.53
Step by Step Solution
- Step 1: Write the proportion equation
20,269,927.52 : 27,972,154.28 = 10,977,422.28 : x - Step 2: Convert to fraction form
20,269,927.52/27,972,154.28 = 10,977,422.28/x - Step 3: Cross multiply
20,269,927.52x = 27,972,154.28 × 10,977,422.28 - Step 4: Simplify right side
20,269,927.52x = 307,062,149,557,982.19 - Step 5: Solve for x
x = 307,062,149,557,982.19/20,269,927.52 - Step 6: Final answer
x = 15,148,655.53
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1.5x scale
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.