Finding the Fourth Proportional to 1,122,022,158.70, 1,683,033,238.05 and 304,134,459.70
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Solution
The fourth proportional to 1,122,022,158.70, 1,683,033,238.05 and 304,134,459.70 is: 456,201,689.55
Step by Step Solution
- Step 1: Write the proportion equation
1,122,022,158.70 : 1,683,033,238.05 = 304,134,459.70 : x - Step 2: Convert to fraction form
1,122,022,158.70/1,683,033,238.05 = 304,134,459.70/x - Step 3: Cross multiply
1,122,022,158.70x = 1,683,033,238.05 × 304,134,459.70 - Step 4: Simplify right side
1,122,022,158.70x = 511,868,404,511,478,208 - Step 5: Solve for x
x = 511,868,404,511,478,208/1,122,022,158.70 - Step 6: Final answer
x = 456,201,689.55
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Double scale
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Similar ratio
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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.