Finding the Fourth Proportional to 118,194,311.75, 163,106,447.58 and 65,273,258.65
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Solution
The fourth proportional to 118,194,311.75, 163,106,447.58 and 65,273,258.65 is: 90,076,156.64
Step by Step Solution
- Step 1: Write the proportion equation
118,194,311.75 : 163,106,447.58 = 65,273,258.65 : x - Step 2: Convert to fraction form
118,194,311.75/163,106,447.58 = 65,273,258.65/x - Step 3: Cross multiply
118,194,311.75x = 163,106,447.58 × 65,273,258.65 - Step 4: Simplify right side
118,194,311.75x = 10,646,489,339,556,476 - Step 5: Solve for x
x = 10,646,489,339,556,476/118,194,311.75 - Step 6: Final answer
x = 90,076,156.64
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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.