Finding the Fourth Proportional to 775,754,488.40, 1,163,631,732.60 and 484,949,973.20
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Solution
The fourth proportional to 775,754,488.40, 1,163,631,732.60 and 484,949,973.20 is: 727,424,959.80
Step by Step Solution
- Step 1: Write the proportion equation
775,754,488.40 : 1,163,631,732.60 = 484,949,973.20 : x - Step 2: Convert to fraction form
775,754,488.40/1,163,631,732.60 = 484,949,973.20/x - Step 3: Cross multiply
775,754,488.40x = 1,163,631,732.60 × 484,949,973.20 - Step 4: Simplify right side
775,754,488.40x = 564,303,177,539,039,488 - Step 5: Solve for x
x = 564,303,177,539,039,488/775,754,488.40 - Step 6: Final answer
x = 727,424,959.80
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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.