Finding the Fourth Proportional to 664,848,000.30, 997,272,000.45 and 629,135,165.10
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Solution
The fourth proportional to 664,848,000.30, 997,272,000.45 and 629,135,165.10 is: 943,702,747.65
Step by Step Solution
- Step 1: Write the proportion equation
664,848,000.30 : 997,272,000.45 = 629,135,165.10 : x - Step 2: Convert to fraction form
664,848,000.30/997,272,000.45 = 629,135,165.10/x - Step 3: Cross multiply
664,848,000.30x = 997,272,000.45 × 629,135,165.10 - Step 4: Simplify right side
664,848,000.30x = 627,418,884,652,718,080 - Step 5: Solve for x
x = 627,418,884,652,718,080/664,848,000.30 - Step 6: Final answer
x = 943,702,747.65
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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.