Finding the Fourth Proportional to 83,480,381.80, 125,220,572.70 and 57,971,213.80
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Solution
The fourth proportional to 83,480,381.80, 125,220,572.70 and 57,971,213.80 is: 86,956,820.70
Step by Step Solution
- Step 1: Write the proportion equation
83,480,381.80 : 125,220,572.70 = 57,971,213.80 : x - Step 2: Convert to fraction form
83,480,381.80/125,220,572.70 = 57,971,213.80/x - Step 3: Cross multiply
83,480,381.80x = 125,220,572.70 × 57,971,213.80 - Step 4: Simplify right side
83,480,381.80x = 7,259,188,592,150,143 - Step 5: Solve for x
x = 7,259,188,592,150,143/83,480,381.80 - Step 6: Final answer
x = 86,956,820.70
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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.