Finding the Fourth Proportional to 5,369,140.69, 7,409,568.74 and 2,921,906.81
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Solution
The fourth proportional to 5,369,140.69, 7,409,568.74 and 2,921,906.81 is: 4,032,315.53
Step by Step Solution
- Step 1: Write the proportion equation
5,369,140.69 : 7,409,568.74 = 2,921,906.81 : x - Step 2: Convert to fraction form
5,369,140.69/7,409,568.74 = 2,921,906.81/x - Step 3: Cross multiply
5,369,140.69x = 7,409,568.74 × 2,921,906.81 - Step 4: Simplify right side
5,369,140.69x = 21,650,069,364,483.51 - Step 5: Solve for x
x = 21,650,069,364,483.51/5,369,140.69 - Step 6: Final answer
x = 4,032,315.53
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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.