Finding the Fourth Proportional to 811,976,260.68, 1,120,399,248.98 and 472,940,533.80
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Solution
The fourth proportional to 811,976,260.68, 1,120,399,248.98 and 472,940,533.80 is: 652,583,387.65
Step by Step Solution
- Step 1: Write the proportion equation
811,976,260.68 : 1,120,399,248.98 = 472,940,533.80 : x - Step 2: Convert to fraction form
811,976,260.68/1,120,399,248.98 = 472,940,533.80/x - Step 3: Cross multiply
811,976,260.68x = 1,120,399,248.98 × 472,940,533.80 - Step 4: Simplify right side
811,976,260.68x = 529,882,218,882,902,720 - Step 5: Solve for x
x = 529,882,218,882,902,720/811,976,260.68 - Step 6: Final answer
x = 652,583,387.65
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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.