Finding the Fourth Proportional to 7,716,790.32, 10,648,403.37 and 4,454,655.99
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Solution
The fourth proportional to 7,716,790.32, 10,648,403.37 and 4,454,655.99 is: 6,146,982.34
Step by Step Solution
- Step 1: Write the proportion equation
7,716,790.32 : 10,648,403.37 = 4,454,655.99 : x - Step 2: Convert to fraction form
7,716,790.32/10,648,403.37 = 4,454,655.99/x - Step 3: Cross multiply
7,716,790.32x = 10,648,403.37 × 4,454,655.99 - Step 4: Simplify right side
7,716,790.32x = 47,434,973,856,106.69 - Step 5: Solve for x
x = 47,434,973,856,106.69/7,716,790.32 - Step 6: Final answer
x = 6,146,982.34
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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.