Finding the Fourth Proportional to 852,984,090.40, 1,279,476,135.60 and 698,015,894.80
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Solution
The fourth proportional to 852,984,090.40, 1,279,476,135.60 and 698,015,894.80 is: 1,047,023,842.20
Step by Step Solution
- Step 1: Write the proportion equation
852,984,090.40 : 1,279,476,135.60 = 698,015,894.80 : x - Step 2: Convert to fraction form
852,984,090.40/1,279,476,135.60 = 698,015,894.80/x - Step 3: Cross multiply
852,984,090.40x = 1,279,476,135.60 × 698,015,894.80 - Step 4: Simplify right side
852,984,090.40x = 893,094,679,666,080,000 - Step 5: Solve for x
x = 893,094,679,666,080,000/852,984,090.40 - Step 6: Final answer
x = 1,047,023,842.20
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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.