Finding the Fourth Proportional to 149,591,840.80, 224,387,761.20 and 68,970,272.80
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Solution
The fourth proportional to 149,591,840.80, 224,387,761.20 and 68,970,272.80 is: 103,455,409.20
Step by Step Solution
- Step 1: Write the proportion equation
149,591,840.80 : 224,387,761.20 = 68,970,272.80 : x - Step 2: Convert to fraction form
149,591,840.80/224,387,761.20 = 68,970,272.80/x - Step 3: Cross multiply
149,591,840.80x = 224,387,761.20 × 68,970,272.80 - Step 4: Simplify right side
149,591,840.80x = 15,476,085,102,945,254 - Step 5: Solve for x
x = 15,476,085,102,945,254/149,591,840.80 - Step 6: Final answer
x = 103,455,409.20
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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.