Finding the Fourth Proportional to 556,678,733.13, 768,171,851.19 and 321,744,610.26
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Solution
The fourth proportional to 556,678,733.13, 768,171,851.19 and 321,744,610.26 is: 443,981,668.72
Step by Step Solution
- Step 1: Write the proportion equation
556,678,733.13 : 768,171,851.19 = 321,744,610.26 : x - Step 2: Convert to fraction form
556,678,733.13/768,171,851.19 = 321,744,610.26/x - Step 3: Cross multiply
556,678,733.13x = 768,171,851.19 × 321,744,610.26 - Step 4: Simplify right side
556,678,733.13x = 247,155,152,873,829,280 - Step 5: Solve for x
x = 247,155,152,873,829,280/556,678,733.13 - Step 6: Final answer
x = 443,981,668.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.