Finding the Fourth Proportional to 853,119,012.80, 1,279,678,519.20 and 754,483,563.20
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Solution
The fourth proportional to 853,119,012.80, 1,279,678,519.20 and 754,483,563.20 is: 1,131,725,344.80
Step by Step Solution
- Step 1: Write the proportion equation
853,119,012.80 : 1,279,678,519.20 = 754,483,563.20 : x - Step 2: Convert to fraction form
853,119,012.80/1,279,678,519.20 = 754,483,563.20/x - Step 3: Cross multiply
853,119,012.80x = 1,279,678,519.20 × 754,483,563.20 - Step 4: Simplify right side
853,119,012.80x = 965,496,408,916,515,712 - Step 5: Solve for x
x = 965,496,408,916,515,712/853,119,012.80 - Step 6: Final answer
x = 1,131,725,344.80
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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.