Finding the Fourth Proportional to 22,480,817.81, 31,024,279.94 and 13,777,308.68
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Solution
The fourth proportional to 22,480,817.81, 31,024,279.94 and 13,777,308.68 is: 19,013,146.44
Step by Step Solution
- Step 1: Write the proportion equation
22,480,817.81 : 31,024,279.94 = 13,777,308.68 : x - Step 2: Convert to fraction form
22,480,817.81/31,024,279.94 = 13,777,308.68/x - Step 3: Cross multiply
22,480,817.81x = 31,024,279.94 × 13,777,308.68 - Step 4: Simplify right side
22,480,817.81x = 427,431,081,084,103.94 - Step 5: Solve for x
x = 427,431,081,084,103.94/22,480,817.81 - Step 6: Final answer
x = 19,013,146.44
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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.