Finding the Fourth Proportional to 889,758,857.70, 1,334,638,286.55 and 598,765,385.70
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Solution
The fourth proportional to 889,758,857.70, 1,334,638,286.55 and 598,765,385.70 is: 898,148,078.55
Step by Step Solution
- Step 1: Write the proportion equation
889,758,857.70 : 1,334,638,286.55 = 598,765,385.70 : x - Step 2: Convert to fraction form
889,758,857.70/1,334,638,286.55 = 598,765,385.70/x - Step 3: Cross multiply
889,758,857.70x = 1,334,638,286.55 × 598,765,385.70 - Step 4: Simplify right side
889,758,857.70x = 799,135,208,416,097,920 - Step 5: Solve for x
x = 799,135,208,416,097,920/889,758,857.70 - Step 6: Final answer
x = 898,148,078.55
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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.