Finding the Fourth Proportional to 866,601,075.08, 1,195,808,591.52 and 485,143,998.05
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Solution
The fourth proportional to 866,601,075.08, 1,195,808,591.52 and 485,143,998.05 is: 669,442,235.50
Step by Step Solution
- Step 1: Write the proportion equation
866,601,075.08 : 1,195,808,591.52 = 485,143,998.05 : x - Step 2: Convert to fraction form
866,601,075.08/1,195,808,591.52 = 485,143,998.05/x - Step 3: Cross multiply
866,601,075.08x = 1,195,808,591.52 × 485,143,998.05 - Step 4: Simplify right side
866,601,075.08x = 580,139,360,986,573,056 - Step 5: Solve for x
x = 580,139,360,986,573,056/866,601,075.08 - Step 6: Final answer
x = 669,442,235.50
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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.