Finding the Fourth Proportional to 145,859,809.42, 201,348,514.83 and 90,882,828.46
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Solution
The fourth proportional to 145,859,809.42, 201,348,514.83 and 90,882,828.46 is: 125,456,920.63
Step by Step Solution
- Step 1: Write the proportion equation
145,859,809.42 : 201,348,514.83 = 90,882,828.46 : x - Step 2: Convert to fraction form
145,859,809.42/201,348,514.83 = 90,882,828.46/x - Step 3: Cross multiply
145,859,809.42x = 201,348,514.83 × 90,882,828.46 - Step 4: Simplify right side
145,859,809.42x = 18,299,122,533,970,656 - Step 5: Solve for x
x = 18,299,122,533,970,656/145,859,809.42 - Step 6: Final answer
x = 125,456,920.63
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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.