Finding the Fourth Proportional to 673,603,659.70, 1,010,405,489.55 and 664,533,733.30
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Solution
The fourth proportional to 673,603,659.70, 1,010,405,489.55 and 664,533,733.30 is: 996,800,599.95
Step by Step Solution
- Step 1: Write the proportion equation
673,603,659.70 : 1,010,405,489.55 = 664,533,733.30 : x - Step 2: Convert to fraction form
673,603,659.70/1,010,405,489.55 = 664,533,733.30/x - Step 3: Cross multiply
673,603,659.70x = 1,010,405,489.55 × 664,533,733.30 - Step 4: Simplify right side
673,603,659.70x = 671,448,532,117,475,584 - Step 5: Solve for x
x = 671,448,532,117,475,584/673,603,659.70 - Step 6: Final answer
x = 996,800,599.95
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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.