Finding the Fourth Proportional to 20,773,489.68, 31,160,192.64 and 19,509,360.12
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Solution
The fourth proportional to 20,773,489.68, 31,160,192.64 and 19,509,360.12 is: 29,264,000.85
Step by Step Solution
- Step 1: Write the proportion equation
20,773,489.68 : 31,160,192.64 = 19,509,360.12 : x - Step 2: Convert to fraction form
20,773,489.68/31,160,192.64 = 19,509,360.12/x - Step 3: Cross multiply
20,773,489.68x = 31,160,192.64 × 19,509,360.12 - Step 4: Simplify right side
20,773,489.68x = 607,915,419,622,333.50 - Step 5: Solve for x
x = 607,915,419,622,333.50/20,773,489.68 - Step 6: Final answer
x = 29,264,000.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.