Finding the Fourth Proportional to 1,183,241,645.40, 1,771,461,245.70 and 724,076,621.40
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Solution
The fourth proportional to 1,183,241,645.40, 1,771,461,245.70 and 724,076,621.40 is: 1,084,033,577.35
Step by Step Solution
- Step 1: Write the proportion equation
1,183,241,645.40 : 1,771,461,245.70 = 724,076,621.40 : x - Step 2: Convert to fraction form
1,183,241,645.40/1,771,461,245.70 = 724,076,621.40/x - Step 3: Cross multiply
1,183,241,645.40x = 1,771,461,245.70 × 724,076,621.40 - Step 4: Simplify right side
1,183,241,645.40x = 1,282,673,673,727,491,328 - Step 5: Solve for x
x = 1,282,673,673,727,491,328/1,183,241,645.40 - Step 6: Final answer
x = 1,084,033,577.35
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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.