Finding the Fourth Proportional to 90,641,285,480.51, 125,085,362,841.94 and 49,442,563,071.99
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Solution
The fourth proportional to 90,641,285,480.51, 125,085,362,841.94 and 49,442,563,071.99 is: 68,230,949,163.07
Step by Step Solution
- Step 1: Write the proportion equation
90,641,285,480.51 : 125,085,362,841.94 = 49,442,563,071.99 : x - Step 2: Convert to fraction form
90,641,285,480.51/125,085,362,841.94 = 49,442,563,071.99/x - Step 3: Cross multiply
90,641,285,480.51x = 125,085,362,841.94 × 49,442,563,071.99 - Step 4: Simplify right side
90,641,285,480.51x = 6,184,540,941,695,372,492,800 - Step 5: Solve for x
x = 6,184,540,941,695,372,492,800/90,641,285,480.51 - Step 6: Final answer
x = 68,230,949,163.07
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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.