Finding the Fourth Proportional to 175,988,077.20, 263,982,115.80 and 130,638,445.20
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Solution
The fourth proportional to 175,988,077.20, 263,982,115.80 and 130,638,445.20 is: 195,957,667.80
Step by Step Solution
- Step 1: Write the proportion equation
175,988,077.20 : 263,982,115.80 = 130,638,445.20 : x - Step 2: Convert to fraction form
175,988,077.20/263,982,115.80 = 130,638,445.20/x - Step 3: Cross multiply
175,988,077.20x = 263,982,115.80 × 130,638,445.20 - Step 4: Simplify right side
175,988,077.20x = 34,486,213,168,718,356 - Step 5: Solve for x
x = 34,486,213,168,718,356/175,988,077.20 - Step 6: Final answer
x = 195,957,667.80
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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.