Finding the Fourth Proportional to 201,643,228.80, 302,464,843.20 and 99,456,220.80
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Solution
The fourth proportional to 201,643,228.80, 302,464,843.20 and 99,456,220.80 is: 149,184,331.20
Step by Step Solution
- Step 1: Write the proportion equation
201,643,228.80 : 302,464,843.20 = 99,456,220.80 : x - Step 2: Convert to fraction form
201,643,228.80/302,464,843.20 = 99,456,220.80/x - Step 3: Cross multiply
201,643,228.80x = 302,464,843.20 × 99,456,220.80 - Step 4: Simplify right side
201,643,228.80x = 30,082,010,229,536,576 - Step 5: Solve for x
x = 30,082,010,229,536,576/201,643,228.80 - Step 6: Final answer
x = 149,184,331.20
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1.5x scale
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.