Finding the Fourth Proportional to 13,487,140.58, 20,222,012.65 and 5,290,610.99
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Solution
The fourth proportional to 13,487,140.58, 20,222,012.65 and 5,290,610.99 is: 7,932,504.43
Step by Step Solution
- Step 1: Write the proportion equation
13,487,140.58 : 20,222,012.65 = 5,290,610.99 : x - Step 2: Convert to fraction form
13,487,140.58/20,222,012.65 = 5,290,610.99/x - Step 3: Cross multiply
13,487,140.58x = 20,222,012.65 × 5,290,610.99 - Step 4: Simplify right side
13,487,140.58x = 106,986,802,403,337.53 - Step 5: Solve for x
x = 106,986,802,403,337.53/13,487,140.58 - Step 6: Final answer
x = 7,932,504.43
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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.