Finding the Fourth Proportional to 910,689,745.10, 1,256,752,253.99 and 493,002,016.88
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Solution
The fourth proportional to 910,689,745.10, 1,256,752,253.99 and 493,002,016.88 is: 680,343,002.95
Step by Step Solution
- Step 1: Write the proportion equation
910,689,745.10 : 1,256,752,253.99 = 493,002,016.88 : x - Step 2: Convert to fraction form
910,689,745.10/1,256,752,253.99 = 493,002,016.88/x - Step 3: Cross multiply
910,689,745.10x = 1,256,752,253.99 × 493,002,016.88 - Step 4: Simplify right side
910,689,745.10x = 619,581,395,930,504,832 - Step 5: Solve for x
x = 619,581,395,930,504,832/910,689,745.10 - Step 6: Final answer
x = 680,343,002.95
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1.5x scale
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.