Finding the Fourth Proportional to 748,014,772.30, 1,122,022,158.45 and 202,756,306.30
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Solution
The fourth proportional to 748,014,772.30, 1,122,022,158.45 and 202,756,306.30 is: 304,134,459.45
Step by Step Solution
- Step 1: Write the proportion equation
748,014,772.30 : 1,122,022,158.45 = 202,756,306.30 : x - Step 2: Convert to fraction form
748,014,772.30/1,122,022,158.45 = 202,756,306.30/x - Step 3: Cross multiply
748,014,772.30x = 1,122,022,158.45 × 202,756,306.30 - Step 4: Simplify right side
748,014,772.30x = 227,497,068,434,075,360 - Step 5: Solve for x
x = 227,497,068,434,075,360/748,014,772.30 - Step 6: Final answer
x = 304,134,459.45
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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.