Finding the Fourth Proportional to 13,605,489.81, 18,775,572.39 and 7,493,918.31
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Solution
The fourth proportional to 13,605,489.81, 18,775,572.39 and 7,493,918.31 is: 10,341,605.31
Step by Step Solution
- Step 1: Write the proportion equation
13,605,489.81 : 18,775,572.39 = 7,493,918.31 : x - Step 2: Convert to fraction form
13,605,489.81/18,775,572.39 = 7,493,918.31/x - Step 3: Cross multiply
13,605,489.81x = 18,775,572.39 × 7,493,918.31 - Step 4: Simplify right side
13,605,489.81x = 140,702,605,714,151.45 - Step 5: Solve for x
x = 140,702,605,714,151.45/13,605,489.81 - Step 6: Final answer
x = 10,341,605.31
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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.