Finding the Fourth Proportional to 664,302,286.90, 996,453,430.35 and 660,475,911.70
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Solution
The fourth proportional to 664,302,286.90, 996,453,430.35 and 660,475,911.70 is: 990,713,867.55
Step by Step Solution
- Step 1: Write the proportion equation
664,302,286.90 : 996,453,430.35 = 660,475,911.70 : x - Step 2: Convert to fraction form
664,302,286.90/996,453,430.35 = 660,475,911.70/x - Step 3: Cross multiply
664,302,286.90x = 996,453,430.35 × 660,475,911.70 - Step 4: Simplify right side
664,302,286.90x = 658,133,487,877,008,768 - Step 5: Solve for x
x = 658,133,487,877,008,768/664,302,286.90 - Step 6: Final answer
x = 990,713,867.55
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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.