Finding the Fourth Proportional to 12,916,462.24, 17,823,797.52 and 7,689,193.12
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Solution
The fourth proportional to 12,916,462.24, 17,823,797.52 and 7,689,193.12 is: 10,610,538.61
Step by Step Solution
- Step 1: Write the proportion equation
12,916,462.24 : 17,823,797.52 = 7,689,193.12 : x - Step 2: Convert to fraction form
12,916,462.24/17,823,797.52 = 7,689,193.12/x - Step 3: Cross multiply
12,916,462.24x = 17,823,797.52 × 7,689,193.12 - Step 4: Simplify right side
12,916,462.24x = 137,050,621,263,057.06 - Step 5: Solve for x
x = 137,050,621,263,057.06/12,916,462.24 - Step 6: Final answer
x = 10,610,538.61
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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.