Finding the Fourth Proportional to 28,821,097.42, 39,774,062.92 and 15,768,057.63
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Solution
The fourth proportional to 28,821,097.42, 39,774,062.92 and 15,768,057.63 is: 21,760,438.44
Step by Step Solution
- Step 1: Write the proportion equation
28,821,097.42 : 39,774,062.92 = 15,768,057.63 : x - Step 2: Convert to fraction form
28,821,097.42/39,774,062.92 = 15,768,057.63/x - Step 3: Cross multiply
28,821,097.42x = 39,774,062.92 × 15,768,057.63 - Step 4: Simplify right side
28,821,097.42x = 627,159,716,142,798.38 - Step 5: Solve for x
x = 627,159,716,142,798.38/28,821,097.42 - Step 6: Final answer
x = 21,760,438.44
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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.