Finding the Fourth Proportional to 201,474,015.80, 302,211,023.70 and 157,636,038.20
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Solution
The fourth proportional to 201,474,015.80, 302,211,023.70 and 157,636,038.20 is: 236,454,057.30
Step by Step Solution
- Step 1: Write the proportion equation
201,474,015.80 : 302,211,023.70 = 157,636,038.20 : x - Step 2: Convert to fraction form
201,474,015.80/302,211,023.70 = 157,636,038.20/x - Step 3: Cross multiply
201,474,015.80x = 302,211,023.70 × 157,636,038.20 - Step 4: Simplify right side
201,474,015.80x = 47,639,348,476,434,296 - Step 5: Solve for x
x = 47,639,348,476,434,296/201,474,015.80 - Step 6: Final answer
x = 236,454,057.30
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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.