Finding the Fourth Proportional to 5,156,970.05, 7,116,840.10 and 2,865,130.73
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Solution
The fourth proportional to 5,156,970.05, 7,116,840.10 and 2,865,130.73 is: 3,954,003.44
Step by Step Solution
- Step 1: Write the proportion equation
5,156,970.05 : 7,116,840.10 = 2,865,130.73 : x - Step 2: Convert to fraction form
5,156,970.05/7,116,840.10 = 2,865,130.73/x - Step 3: Cross multiply
5,156,970.05x = 7,116,840.10 × 2,865,130.73 - Step 4: Simplify right side
5,156,970.05x = 20,390,677,297,665.68 - Step 5: Solve for x
x = 20,390,677,297,665.68/5,156,970.05 - Step 6: Final answer
x = 3,954,003.44
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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.