Finding the Fourth Proportional to 876,611,268.46, 1,209,724,202.68 and 474,728,136.82
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Solution
The fourth proportional to 876,611,268.46, 1,209,724,202.68 and 474,728,136.82 is: 655,125,182.01
Step by Step Solution
- Step 1: Write the proportion equation
876,611,268.46 : 1,209,724,202.68 = 474,728,136.82 : x - Step 2: Convert to fraction form
876,611,268.46/1,209,724,202.68 = 474,728,136.82/x - Step 3: Cross multiply
876,611,268.46x = 1,209,724,202.68 × 474,728,136.82 - Step 4: Simplify right side
876,611,268.46x = 574,290,116,804,336,448 - Step 5: Solve for x
x = 574,290,116,804,336,448/876,611,268.46 - Step 6: Final answer
x = 655,125,182.01
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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.