Finding the Fourth Proportional to 259,952,844,369.12, 389,955,985,262.40 and 89,972,155,896.24
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Solution
The fourth proportional to 259,952,844,369.12, 389,955,985,262.40 and 89,972,155,896.24 is: 134,967,481,443.99
Step by Step Solution
- Step 1: Write the proportion equation
259,952,844,369.12 : 389,955,985,262.40 = 89,972,155,896.24 : x - Step 2: Convert to fraction form
259,952,844,369.12/389,955,985,262.40 = 89,972,155,896.24/x - Step 3: Cross multiply
259,952,844,369.12x = 389,955,985,262.40 × 89,972,155,896.24 - Step 4: Simplify right side
259,952,844,369.12x = 35,085,180,698,701,305,217,024 - Step 5: Solve for x
x = 35,085,180,698,701,305,217,024/259,952,844,369.12 - Step 6: Final answer
x = 134,967,481,443.99
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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.