Finding the Fourth Proportional to 5,122,461.20, 7,068,998.97 and 2,830,621.88
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Solution
The fourth proportional to 5,122,461.20, 7,068,998.97 and 2,830,621.88 is: 3,906,259.59
Step by Step Solution
- Step 1: Write the proportion equation
5,122,461.20 : 7,068,998.97 = 2,830,621.88 : x - Step 2: Convert to fraction form
5,122,461.20/7,068,998.97 = 2,830,621.88/x - Step 3: Cross multiply
5,122,461.20x = 7,068,998.97 × 2,830,621.88 - Step 4: Simplify right side
5,122,461.20x = 20,009,663,171,851.96 - Step 5: Solve for x
x = 20,009,663,171,851.96/5,122,461.20 - Step 6: Final answer
x = 3,906,259.59
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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.