Finding the Fourth Proportional to 39,363,563.19, 54,321,740.55 and 21,959,908.35
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Solution
The fourth proportional to 39,363,563.19, 54,321,740.55 and 21,959,908.35 is: 30,304,686.55
Step by Step Solution
- Step 1: Write the proportion equation
39,363,563.19 : 54,321,740.55 = 21,959,908.35 : x - Step 2: Convert to fraction form
39,363,563.19/54,321,740.55 = 21,959,908.35/x - Step 3: Cross multiply
39,363,563.19x = 54,321,740.55 × 21,959,908.35 - Step 4: Simplify right side
39,363,563.19x = 1,192,900,443,890,478.50 - Step 5: Solve for x
x = 1,192,900,443,890,478.50/39,363,563.19 - Step 6: Final answer
x = 30,304,686.55
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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.