Finding the Fourth Proportional to 7,430,673.70, 11,146,010.55 and 6,686,656.30
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Solution
The fourth proportional to 7,430,673.70, 11,146,010.55 and 6,686,656.30 is: 10,029,984.45
Step by Step Solution
- Step 1: Write the proportion equation
7,430,673.70 : 11,146,010.55 = 6,686,656.30 : x - Step 2: Convert to fraction form
7,430,673.70/11,146,010.55 = 6,686,656.30/x - Step 3: Cross multiply
7,430,673.70x = 11,146,010.55 × 6,686,656.30 - Step 4: Simplify right side
7,430,673.70x = 74,529,541,664,023.97 - Step 5: Solve for x
x = 74,529,541,664,023.97/7,430,673.70 - Step 6: Final answer
x = 10,029,984.45
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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.