Finding the Fourth Proportional to 140,918,877.80, 211,378,316.70 and 80,452,701.80
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Solution
The fourth proportional to 140,918,877.80, 211,378,316.70 and 80,452,701.80 is: 120,679,052.70
Step by Step Solution
- Step 1: Write the proportion equation
140,918,877.80 : 211,378,316.70 = 80,452,701.80 : x - Step 2: Convert to fraction form
140,918,877.80/211,378,316.70 = 80,452,701.80/x - Step 3: Cross multiply
140,918,877.80x = 211,378,316.70 × 80,452,701.80 - Step 4: Simplify right side
140,918,877.80x = 17,005,956,680,451,058 - Step 5: Solve for x
x = 17,005,956,680,451,058/140,918,877.80 - Step 6: Final answer
x = 120,679,052.70
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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.