Finding the Fourth Proportional to 10,231,406.75, 14,115,988.10 and 7,291,686.92
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Solution
The fourth proportional to 10,231,406.75, 14,115,988.10 and 7,291,686.92 is: 10,060,138.19
Step by Step Solution
- Step 1: Write the proportion equation
10,231,406.75 : 14,115,988.10 = 7,291,686.92 : x - Step 2: Convert to fraction form
10,231,406.75/14,115,988.10 = 7,291,686.92/x - Step 3: Cross multiply
10,231,406.75x = 14,115,988.10 × 7,291,686.92 - Step 4: Simplify right side
10,231,406.75x = 102,929,365,684,607.28 - Step 5: Solve for x
x = 102,929,365,684,607.28/10,231,406.75 - Step 6: Final answer
x = 10,060,138.19
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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.