Finding the Fourth Proportional to 211,782,128.06, 292,168,679.17 and 132,259,130.79
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Solution
The fourth proportional to 211,782,128.06, 292,168,679.17 and 132,259,130.79 is: 182,460,984.33
Step by Step Solution
- Step 1: Write the proportion equation
211,782,128.06 : 292,168,679.17 = 132,259,130.79 : x - Step 2: Convert to fraction form
211,782,128.06/292,168,679.17 = 132,259,130.79/x - Step 3: Cross multiply
211,782,128.06x = 292,168,679.17 × 132,259,130.79 - Step 4: Simplify right side
211,782,128.06x = 38,641,975,550,755,936 - Step 5: Solve for x
x = 38,641,975,550,755,936/211,782,128.06 - Step 6: Final answer
x = 182,460,984.33
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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.