Finding the Fourth Proportional to 130,209,640.74, 196,093,920.10 and 118,587,026.07
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Solution
The fourth proportional to 130,209,640.74, 196,093,920.10 and 118,587,026.07 is: 178,590,422.97
Step by Step Solution
- Step 1: Write the proportion equation
130,209,640.74 : 196,093,920.10 = 118,587,026.07 : x - Step 2: Convert to fraction form
130,209,640.74/196,093,920.10 = 118,587,026.07/x - Step 3: Cross multiply
130,209,640.74x = 196,093,920.10 × 118,587,026.07 - Step 4: Simplify right side
130,209,640.74x = 23,254,194,814,770,728 - Step 5: Solve for x
x = 23,254,194,814,770,728/130,209,640.74 - Step 6: Final answer
x = 178,590,422.97
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.