Finding the Fourth Proportional to 5,642,452.79, 7,788,968.28 and 3,809,393.81
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Solution
The fourth proportional to 5,642,452.79, 7,788,968.28 and 3,809,393.81 is: 5,258,572.58
Step by Step Solution
- Step 1: Write the proportion equation
5,642,452.79 : 7,788,968.28 = 3,809,393.81 : x - Step 2: Convert to fraction form
5,642,452.79/7,788,968.28 = 3,809,393.81/x - Step 3: Cross multiply
5,642,452.79x = 7,788,968.28 × 3,809,393.81 - Step 4: Simplify right side
5,642,452.79x = 29,671,247,513,173.51 - Step 5: Solve for x
x = 29,671,247,513,173.51/5,642,452.79 - Step 6: Final answer
x = 5,258,572.58
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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.