Finding the Fourth Proportional to 664,302,612.20, 996,453,918.30 and 604,037,202.80
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Solution
The fourth proportional to 664,302,612.20, 996,453,918.30 and 604,037,202.80 is: 906,055,804.20
Step by Step Solution
- Step 1: Write the proportion equation
664,302,612.20 : 996,453,918.30 = 604,037,202.80 : x - Step 2: Convert to fraction form
664,302,612.20/996,453,918.30 = 604,037,202.80/x - Step 3: Cross multiply
664,302,612.20x = 996,453,918.30 × 604,037,202.80 - Step 4: Simplify right side
664,302,612.20x = 601,895,237,529,031,680 - Step 5: Solve for x
x = 601,895,237,529,031,680/664,302,612.20 - Step 6: Final answer
x = 906,055,804.20
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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.