Finding the Fourth Proportional to 125,820,393,765.12, 173,632,136,755.53 and 67,948,768,011.75
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Solution
The fourth proportional to 125,820,393,765.12, 173,632,136,755.53 and 67,948,768,011.75 is: 93,769,296,270.12
Step by Step Solution
- Step 1: Write the proportion equation
125,820,393,765.12 : 173,632,136,755.53 = 67,948,768,011.75 : x - Step 2: Convert to fraction form
125,820,393,765.12/173,632,136,755.53 = 67,948,768,011.75/x - Step 3: Cross multiply
125,820,393,765.12x = 173,632,136,755.53 × 67,948,768,011.75 - Step 4: Simplify right side
125,820,393,765.12x = 11,798,089,779,785,089,679,360 - Step 5: Solve for x
x = 11,798,089,779,785,089,679,360/125,820,393,765.12 - Step 6: Final answer
x = 93,769,296,270.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.