Finding the Fourth Proportional to 493,769,090.36, 680,742,168.68 and 392,263,562.91
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Solution
The fourth proportional to 493,769,090.36, 680,742,168.68 and 392,263,562.91 is: 540,800,049.50
Step by Step Solution
- Step 1: Write the proportion equation
493,769,090.36 : 680,742,168.68 = 392,263,562.91 : x - Step 2: Convert to fraction form
493,769,090.36/680,742,168.68 = 392,263,562.91/x - Step 3: Cross multiply
493,769,090.36x = 680,742,168.68 × 392,263,562.91 - Step 4: Simplify right side
493,769,090.36x = 267,030,348,504,131,936 - Step 5: Solve for x
x = 267,030,348,504,131,936/493,769,090.36 - Step 6: Final answer
x = 540,800,049.50
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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.