Finding the Fourth Proportional to 22,556,990.55, 31,127,841.47 and 12,767,224.48
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Solution
The fourth proportional to 22,556,990.55, 31,127,841.47 and 12,767,224.48 is: 17,618,313.88
Step by Step Solution
- Step 1: Write the proportion equation
22,556,990.55 : 31,127,841.47 = 12,767,224.48 : x - Step 2: Convert to fraction form
22,556,990.55/31,127,841.47 = 12,767,224.48/x - Step 3: Cross multiply
22,556,990.55x = 31,127,841.47 × 12,767,224.48 - Step 4: Simplify right side
22,556,990.55x = 397,416,139,625,343.19 - Step 5: Solve for x
x = 397,416,139,625,343.19/22,556,990.55 - Step 6: Final answer
x = 17,618,313.88
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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.