Finding the Fourth Proportional to 201,643,856.80, 302,465,785.20 and 99,456,848.80
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Solution
The fourth proportional to 201,643,856.80, 302,465,785.20 and 99,456,848.80 is: 149,185,273.20
Step by Step Solution
- Step 1: Write the proportion equation
201,643,856.80 : 302,465,785.20 = 99,456,848.80 : x - Step 2: Convert to fraction form
201,643,856.80/302,465,785.20 = 99,456,848.80/x - Step 3: Cross multiply
201,643,856.80x = 302,465,785.20 × 99,456,848.80 - Step 4: Simplify right side
201,643,856.80x = 30,082,293,865,809,676 - Step 5: Solve for x
x = 30,082,293,865,809,676/201,643,856.80 - Step 6: Final answer
x = 149,185,273.20
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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.