Finding the Fourth Proportional to 453,296,873.70, 679,945,310.55 and 443,219,177.70
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Solution
The fourth proportional to 453,296,873.70, 679,945,310.55 and 443,219,177.70 is: 664,828,766.55
Step by Step Solution
- Step 1: Write the proportion equation
453,296,873.70 : 679,945,310.55 = 443,219,177.70 : x - Step 2: Convert to fraction form
453,296,873.70/679,945,310.55 = 443,219,177.70/x - Step 3: Cross multiply
453,296,873.70x = 679,945,310.55 × 443,219,177.70 - Step 4: Simplify right side
453,296,873.70x = 301,364,801,422,942,080 - Step 5: Solve for x
x = 301,364,801,422,942,080/453,296,873.70 - Step 6: Final answer
x = 664,828,766.55
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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.