Finding the Fourth Proportional to 996,651,203.90, 1,494,976,805.85 and 478,956,811.10
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Solution
The fourth proportional to 996,651,203.90, 1,494,976,805.85 and 478,956,811.10 is: 718,435,216.65
Step by Step Solution
- Step 1: Write the proportion equation
996,651,203.90 : 1,494,976,805.85 = 478,956,811.10 : x - Step 2: Convert to fraction form
996,651,203.90/1,494,976,805.85 = 478,956,811.10/x - Step 3: Cross multiply
996,651,203.90x = 1,494,976,805.85 × 478,956,811.10 - Step 4: Simplify right side
996,651,203.90x = 716,029,323,598,379,776 - Step 5: Solve for x
x = 716,029,323,598,379,776/996,651,203.90 - Step 6: Final answer
x = 718,435,216.65
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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.