Finding the Fourth Proportional to 79,571,248,217.39, 109,857,888,201.16 and 50,651,761,540.07
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Solution
The fourth proportional to 79,571,248,217.39, 109,857,888,201.16 and 50,651,761,540.07 is: 69,930,982,372.66
Step by Step Solution
- Step 1: Write the proportion equation
79,571,248,217.39 : 109,857,888,201.16 = 50,651,761,540.07 : x - Step 2: Convert to fraction form
79,571,248,217.39/109,857,888,201.16 = 50,651,761,540.07/x - Step 3: Cross multiply
79,571,248,217.39x = 109,857,888,201.16 × 50,651,761,540.07 - Step 4: Simplify right side
79,571,248,217.39x = 5,564,495,556,460,826,066,944 - Step 5: Solve for x
x = 5,564,495,556,460,826,066,944/79,571,248,217.39 - Step 6: Final answer
x = 69,930,982,372.66
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1.5x scale
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.