Finding the Fourth Proportional to 263,313,980.28, 363,617,548.74 and 197,119,558.80
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Solution
The fourth proportional to 263,313,980.28, 363,617,548.74 and 197,119,558.80 is: 272,207,843.67
Step by Step Solution
- Step 1: Write the proportion equation
263,313,980.28 : 363,617,548.74 = 197,119,558.80 : x - Step 2: Convert to fraction form
263,313,980.28/363,617,548.74 = 197,119,558.80/x - Step 3: Cross multiply
263,313,980.28x = 363,617,548.74 × 197,119,558.80 - Step 4: Simplify right side
263,313,980.28x = 71,676,130,779,566,304 - Step 5: Solve for x
x = 71,676,130,779,566,304/263,313,980.28 - Step 6: Final answer
x = 272,207,843.67
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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.