Finding the Fourth Proportional to 4,128,946.44, 5,697,799.86 and 2,318,186.76
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Solution
The fourth proportional to 4,128,946.44, 5,697,799.86 and 2,318,186.76 is: 3,199,015.63
Step by Step Solution
- Step 1: Write the proportion equation
4,128,946.44 : 5,697,799.86 = 2,318,186.76 : x - Step 2: Convert to fraction form
4,128,946.44/5,697,799.86 = 2,318,186.76/x - Step 3: Cross multiply
4,128,946.44x = 5,697,799.86 × 2,318,186.76 - Step 4: Simplify right side
4,128,946.44x = 13,208,564,196,581.85 - Step 5: Solve for x
x = 13,208,564,196,581.85/4,128,946.44 - Step 6: Final answer
x = 3,199,015.63
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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.