Finding the Fourth Proportional to 5,012,111.12, 6,916,720.08 and 2,720,271.84
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Solution
The fourth proportional to 5,012,111.12, 6,916,720.08 and 2,720,271.84 is: 3,753,978.79
Step by Step Solution
- Step 1: Write the proportion equation
5,012,111.12 : 6,916,720.08 = 2,720,271.84 : x - Step 2: Convert to fraction form
5,012,111.12/6,916,720.08 = 2,720,271.84/x - Step 3: Cross multiply
5,012,111.12x = 6,916,720.08 × 2,720,271.84 - Step 4: Simplify right side
5,012,111.12x = 18,815,358,858,786.55 - Step 5: Solve for x
x = 18,815,358,858,786.55/5,012,111.12 - Step 6: Final answer
x = 3,753,978.79
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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.