Finding the Fourth Proportional to 254,201,556.80, 381,302,335.20 and 72,425,115.20
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Solution
The fourth proportional to 254,201,556.80, 381,302,335.20 and 72,425,115.20 is: 108,637,672.80
Step by Step Solution
- Step 1: Write the proportion equation
254,201,556.80 : 381,302,335.20 = 72,425,115.20 : x - Step 2: Convert to fraction form
254,201,556.80/381,302,335.20 = 72,425,115.20/x - Step 3: Cross multiply
254,201,556.80x = 381,302,335.20 × 72,425,115.20 - Step 4: Simplify right side
254,201,556.80x = 27,615,865,552,889,016 - Step 5: Solve for x
x = 27,615,865,552,889,016/254,201,556.80 - Step 6: Final answer
x = 108,637,672.80
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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.