Finding the Fourth Proportional to 577,370,207.70, 866,055,311.55 and 543,357,983.70
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Solution
The fourth proportional to 577,370,207.70, 866,055,311.55 and 543,357,983.70 is: 815,036,975.55
Step by Step Solution
- Step 1: Write the proportion equation
577,370,207.70 : 866,055,311.55 = 543,357,983.70 : x - Step 2: Convert to fraction form
577,370,207.70/866,055,311.55 = 543,357,983.70/x - Step 3: Cross multiply
577,370,207.70x = 866,055,311.55 × 543,357,983.70 - Step 4: Simplify right side
577,370,207.70x = 470,578,067,856,483,328 - Step 5: Solve for x
x = 470,578,067,856,483,328/577,370,207.70 - Step 6: Final answer
x = 815,036,975.55
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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.