Finding the Fourth Proportional to 756,873,293.20, 1,135,309,939.80 and 524,420,999.80
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Solution
The fourth proportional to 756,873,293.20, 1,135,309,939.80 and 524,420,999.80 is: 786,631,499.70
Step by Step Solution
- Step 1: Write the proportion equation
756,873,293.20 : 1,135,309,939.80 = 524,420,999.80 : x - Step 2: Convert to fraction form
756,873,293.20/1,135,309,939.80 = 524,420,999.80/x - Step 3: Cross multiply
756,873,293.20x = 1,135,309,939.80 × 524,420,999.80 - Step 4: Simplify right side
756,873,293.20x = 595,380,373,712,793,856 - Step 5: Solve for x
x = 595,380,373,712,793,856/756,873,293.20 - Step 6: Final answer
x = 786,631,499.70
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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.