Finding the Fourth Proportional to 664,848,313.20, 997,272,469.80 and 302,051,257.20
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Solution
The fourth proportional to 664,848,313.20, 997,272,469.80 and 302,051,257.20 is: 453,076,885.80
Step by Step Solution
- Step 1: Write the proportion equation
664,848,313.20 : 997,272,469.80 = 302,051,257.20 : x - Step 2: Convert to fraction form
664,848,313.20/997,272,469.80 = 302,051,257.20/x - Step 3: Cross multiply
664,848,313.20x = 997,272,469.80 × 302,051,257.20 - Step 4: Simplify right side
664,848,313.20x = 301,227,403,274,038,976 - Step 5: Solve for x
x = 301,227,403,274,038,976/664,848,313.20 - Step 6: Final answer
x = 453,076,885.80
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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.