Finding the Fourth Proportional to 149,542,425.80, 224,313,638.70 and 68,920,857.80
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Solution
The fourth proportional to 149,542,425.80, 224,313,638.70 and 68,920,857.80 is: 103,381,286.70
Step by Step Solution
- Step 1: Write the proportion equation
149,542,425.80 : 224,313,638.70 = 68,920,857.80 : x - Step 2: Convert to fraction form
149,542,425.80/224,313,638.70 = 68,920,857.80/x - Step 3: Cross multiply
149,542,425.80x = 224,313,638.70 × 68,920,857.80 - Step 4: Simplify right side
149,542,425.80x = 15,459,888,395,443,276 - Step 5: Solve for x
x = 15,459,888,395,443,276/149,542,425.80 - Step 6: Final answer
x = 103,381,286.70
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1.5x scale
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.