Finding the Fourth Proportional to 5,430,854.93, 8,146,282.40 and 1,387,351.64
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Solution
The fourth proportional to 5,430,854.93, 8,146,282.40 and 1,387,351.64 is: 2,081,027.46
Step by Step Solution
- Step 1: Write the proportion equation
5,430,854.93 : 8,146,282.40 = 1,387,351.64 : x - Step 2: Convert to fraction form
5,430,854.93/8,146,282.40 = 1,387,351.64/x - Step 3: Cross multiply
5,430,854.93x = 8,146,282.40 × 1,387,351.64 - Step 4: Simplify right side
5,430,854.93x = 11,301,758,271,377.22 - Step 5: Solve for x
x = 11,301,758,271,377.22/5,430,854.93 - Step 6: Final answer
x = 2,081,027.46
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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.