Finding the Fourth Proportional to 82,791,247.44, 113,424,420.12 and 79,688,273.52
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Solution
The fourth proportional to 82,791,247.44, 113,424,420.12 and 79,688,273.52 is: 109,173,330.44
Step by Step Solution
- Step 1: Write the proportion equation
82,791,247.44 : 113,424,420.12 = 79,688,273.52 : x - Step 2: Convert to fraction form
82,791,247.44/113,424,420.12 = 79,688,273.52/x - Step 3: Cross multiply
82,791,247.44x = 113,424,420.12 × 79,688,273.52 - Step 4: Simplify right side
82,791,247.44x = 9,038,596,214,369,952 - Step 5: Solve for x
x = 9,038,596,214,369,952/82,791,247.44 - Step 6: Final answer
x = 109,173,330.44
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.