Finding the Fourth Proportional to 7,621,718.64, 10,517,585.81 and 4,524,374.42
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Solution
The fourth proportional to 7,621,718.64, 10,517,585.81 and 4,524,374.42 is: 6,243,407.61
Step by Step Solution
- Step 1: Write the proportion equation
7,621,718.64 : 10,517,585.81 = 4,524,374.42 : x - Step 2: Convert to fraction form
7,621,718.64/10,517,585.81 = 4,524,374.42/x - Step 3: Cross multiply
7,621,718.64x = 10,517,585.81 × 4,524,374.42 - Step 4: Simplify right side
7,621,718.64x = 47,585,496,163,150.12 - Step 5: Solve for x
x = 47,585,496,163,150.12/7,621,718.64 - Step 6: Final answer
x = 6,243,407.61
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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.