Finding the Fourth Proportional to 103,538,106.63, 142,885,576.94 and 57,131,349.84
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Solution
The fourth proportional to 103,538,106.63, 142,885,576.94 and 57,131,349.84 is: 78,842,912.51
Step by Step Solution
- Step 1: Write the proportion equation
103,538,106.63 : 142,885,576.94 = 57,131,349.84 : x - Step 2: Convert to fraction form
103,538,106.63/142,885,576.94 = 57,131,349.84/x - Step 3: Cross multiply
103,538,106.63x = 142,885,576.94 × 57,131,349.84 - Step 4: Simplify right side
103,538,106.63x = 8,163,245,882,963,721 - Step 5: Solve for x
x = 8,163,245,882,963,721/103,538,106.63 - Step 6: Final answer
x = 78,842,912.51
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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.