Finding the Fourth Proportional to 141,768,154.80, 212,652,232.20 and 84,230,809.20
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Solution
The fourth proportional to 141,768,154.80, 212,652,232.20 and 84,230,809.20 is: 126,346,213.80
Step by Step Solution
- Step 1: Write the proportion equation
141,768,154.80 : 212,652,232.20 = 84,230,809.20 : x - Step 2: Convert to fraction form
141,768,154.80/212,652,232.20 = 84,230,809.20/x - Step 3: Cross multiply
141,768,154.80x = 212,652,232.20 × 84,230,809.20 - Step 4: Simplify right side
141,768,154.80x = 17,911,869,596,392,296 - Step 5: Solve for x
x = 17,911,869,596,392,296/141,768,154.80 - Step 6: Final answer
x = 126,346,213.80
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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.