Finding the Fourth Proportional to 145,859,809.92, 201,348,515.52 and 90,882,828.96
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Solution
The fourth proportional to 145,859,809.92, 201,348,515.52 and 90,882,828.96 is: 125,456,921.32
Step by Step Solution
- Step 1: Write the proportion equation
145,859,809.92 : 201,348,515.52 = 90,882,828.96 : x - Step 2: Convert to fraction form
145,859,809.92/201,348,515.52 = 90,882,828.96/x - Step 3: Cross multiply
145,859,809.92x = 201,348,515.52 × 90,882,828.96 - Step 4: Simplify right side
145,859,809.92x = 18,299,122,697,354,064 - Step 5: Solve for x
x = 18,299,122,697,354,064/145,859,809.92 - Step 6: Final answer
x = 125,456,921.32
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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.