Finding the Fourth Proportional to 39,159,791.34, 54,041,412.12 and 21,519,790.58
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Solution
The fourth proportional to 39,159,791.34, 54,041,412.12 and 21,519,790.58 is: 29,697,805.62
Step by Step Solution
- Step 1: Write the proportion equation
39,159,791.34 : 54,041,412.12 = 21,519,790.58 : x - Step 2: Convert to fraction form
39,159,791.34/54,041,412.12 = 21,519,790.58/x - Step 3: Cross multiply
39,159,791.34x = 54,041,412.12 × 21,519,790.58 - Step 4: Simplify right side
39,159,791.34x = 1,162,959,871,469,873.75 - Step 5: Solve for x
x = 1,162,959,871,469,873.75/39,159,791.34 - Step 6: Final answer
x = 29,697,805.62
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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.