Finding the Fourth Proportional to 5,165,566.56, 7,128,546.35 and 2,842,726.32
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Solution
The fourth proportional to 5,165,566.56, 7,128,546.35 and 2,842,726.32 is: 3,922,997.81
Step by Step Solution
- Step 1: Write the proportion equation
5,165,566.56 : 7,128,546.35 = 2,842,726.32 : x - Step 2: Convert to fraction form
5,165,566.56/7,128,546.35 = 2,842,726.32/x - Step 3: Cross multiply
5,165,566.56x = 7,128,546.35 × 2,842,726.32 - Step 4: Simplify right side
5,165,566.56x = 20,264,506,318,271.30 - Step 5: Solve for x
x = 20,264,506,318,271.30/5,165,566.56 - Step 6: Final answer
x = 3,922,997.81
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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.