Finding the Fourth Proportional to 103,512,142.90, 155,268,214.35 and 101,496,603.70
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Solution
The fourth proportional to 103,512,142.90, 155,268,214.35 and 101,496,603.70 is: 152,244,905.55
Step by Step Solution
- Step 1: Write the proportion equation
103,512,142.90 : 155,268,214.35 = 101,496,603.70 : x - Step 2: Convert to fraction form
103,512,142.90/155,268,214.35 = 101,496,603.70/x - Step 3: Cross multiply
103,512,142.90x = 155,268,214.35 × 101,496,603.70 - Step 4: Simplify right side
103,512,142.90x = 15,759,196,419,088,602 - Step 5: Solve for x
x = 15,759,196,419,088,602/103,512,142.90 - Step 6: Final answer
x = 152,244,905.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.