Finding the Fourth Proportional to 5,430,860.55, 8,146,290.84 and 1,387,357.26
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Solution
The fourth proportional to 5,430,860.55, 8,146,290.84 and 1,387,357.26 is: 2,081,035.89
Step by Step Solution
- Step 1: Write the proportion equation
5,430,860.55 : 8,146,290.84 = 1,387,357.26 : x - Step 2: Convert to fraction form
5,430,860.55/8,146,290.84 = 1,387,357.26/x - Step 3: Cross multiply
5,430,860.55x = 8,146,290.84 × 1,387,357.26 - Step 4: Simplify right side
5,430,860.55x = 11,301,815,738,945.50 - Step 5: Solve for x
x = 11,301,815,738,945.50/5,430,860.55 - Step 6: Final answer
x = 2,081,035.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.