Finding the Fourth Proportional to 974,311,472.40, 1,461,467,208.60 and 767,687,211.60
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Solution
The fourth proportional to 974,311,472.40, 1,461,467,208.60 and 767,687,211.60 is: 1,151,530,817.40
Step by Step Solution
- Step 1: Write the proportion equation
974,311,472.40 : 1,461,467,208.60 = 767,687,211.60 : x - Step 2: Convert to fraction form
974,311,472.40/1,461,467,208.60 = 767,687,211.60/x - Step 3: Cross multiply
974,311,472.40x = 1,461,467,208.60 × 767,687,211.60 - Step 4: Simplify right side
974,311,472.40x = 1,121,949,686,214,969,472 - Step 5: Solve for x
x = 1,121,949,686,214,969,472/974,311,472.40 - Step 6: Final answer
x = 1,151,530,817.40
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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.