Finding the Fourth Proportional to 5,078,966.24, 7,009,175.49 and 2,787,208.94
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Solution
The fourth proportional to 5,078,966.24, 7,009,175.49 and 2,787,208.94 is: 3,846,459.23
Step by Step Solution
- Step 1: Write the proportion equation
5,078,966.24 : 7,009,175.49 = 2,787,208.94 : x - Step 2: Convert to fraction form
5,078,966.24/7,009,175.49 = 2,787,208.94/x - Step 3: Cross multiply
5,078,966.24x = 7,009,175.49 × 2,787,208.94 - Step 4: Simplify right side
5,078,966.24x = 19,536,036,587,756.88 - Step 5: Solve for x
x = 19,536,036,587,756.88/5,078,966.24 - Step 6: Final answer
x = 3,846,459.23
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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.