Finding the Fourth Proportional to 775,803,280.20, 1,163,704,920.30 and 691,623,025.80
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Solution
The fourth proportional to 775,803,280.20, 1,163,704,920.30 and 691,623,025.80 is: 1,037,434,538.70
Step by Step Solution
- Step 1: Write the proportion equation
775,803,280.20 : 1,163,704,920.30 = 691,623,025.80 : x - Step 2: Convert to fraction form
775,803,280.20/1,163,704,920.30 = 691,623,025.80/x - Step 3: Cross multiply
775,803,280.20x = 1,163,704,920.30 × 691,623,025.80 - Step 4: Simplify right side
775,803,280.20x = 804,845,118,116,233,728 - Step 5: Solve for x
x = 804,845,118,116,233,728/775,803,280.20 - Step 6: Final answer
x = 1,037,434,538.70
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Double scale
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Similar ratio
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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.