Finding the Fourth Proportional to 5,237,718.29, 7,856,909.51 and 1,643,627.09
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Solution
The fourth proportional to 5,237,718.29, 7,856,909.51 and 1,643,627.09 is: 2,465,544.85
Step by Step Solution
- Step 1: Write the proportion equation
5,237,718.29 : 7,856,909.51 = 1,643,627.09 : x - Step 2: Convert to fraction form
5,237,718.29/7,856,909.51 = 1,643,627.09/x - Step 3: Cross multiply
5,237,718.29x = 7,856,909.51 × 1,643,627.09 - Step 4: Simplify right side
5,237,718.29x = 12,913,829,330,361.46 - Step 5: Solve for x
x = 12,913,829,330,361.46/5,237,718.29 - Step 6: Final answer
x = 2,465,544.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.