Finding the Fourth Proportional to 5,121,749.84, 7,068,000.27 and 2,829,894.20
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Solution
The fourth proportional to 5,121,749.84, 7,068,000.27 and 2,829,894.20 is: 3,905,245.98
Step by Step Solution
- Step 1: Write the proportion equation
5,121,749.84 : 7,068,000.27 = 2,829,894.20 : x - Step 2: Convert to fraction form
5,121,749.84/7,068,000.27 = 2,829,894.20/x - Step 3: Cross multiply
5,121,749.84x = 7,068,000.27 × 2,829,894.20 - Step 4: Simplify right side
5,121,749.84x = 20,001,692,969,671.43 - Step 5: Solve for x
x = 20,001,692,969,671.43/5,121,749.84 - Step 6: Final answer
x = 3,905,245.98
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1.5x scale
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.