Finding the Fourth Proportional to 129,122,414.01, 178,187,480.93 and 70,383,790.31
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Solution
The fourth proportional to 129,122,414.01, 178,187,480.93 and 70,383,790.31 is: 97,128,840.02
Step by Step Solution
- Step 1: Write the proportion equation
129,122,414.01 : 178,187,480.93 = 70,383,790.31 : x - Step 2: Convert to fraction form
129,122,414.01/178,187,480.93 = 70,383,790.31/x - Step 3: Cross multiply
129,122,414.01x = 178,187,480.93 × 70,383,790.31 - Step 4: Simplify right side
129,122,414.01x = 12,541,510,292,929,268 - Step 5: Solve for x
x = 12,541,510,292,929,268/129,122,414.01 - Step 6: Final answer
x = 97,128,840.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.