Finding the Fourth Proportional to 852,822,599.68, 1,279,233,899.88 and 307,564,133.68
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Solution
The fourth proportional to 852,822,599.68, 1,279,233,899.88 and 307,564,133.68 is: 461,346,200.65
Step by Step Solution
- Step 1: Write the proportion equation
852,822,599.68 : 1,279,233,899.88 = 307,564,133.68 : x - Step 2: Convert to fraction form
852,822,599.68/1,279,233,899.88 = 307,564,133.68/x - Step 3: Cross multiply
852,822,599.68x = 1,279,233,899.88 × 307,564,133.68 - Step 4: Simplify right side
852,822,599.68x = 393,446,466,190,680,128 - Step 5: Solve for x
x = 393,446,466,190,680,128/852,822,599.68 - Step 6: Final answer
x = 461,346,200.65
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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.