Finding the Fourth Proportional to 138,438,712.08, 207,546,087.96 and 84,567,828.24
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Solution
The fourth proportional to 138,438,712.08, 207,546,087.96 and 84,567,828.24 is: 126,783,337.22
Step by Step Solution
- Step 1: Write the proportion equation
138,438,712.08 : 207,546,087.96 = 84,567,828.24 : x - Step 2: Convert to fraction form
138,438,712.08/207,546,087.96 = 84,567,828.24/x - Step 3: Cross multiply
138,438,712.08x = 207,546,087.96 × 84,567,828.24 - Step 4: Simplify right side
138,438,712.08x = 17,551,721,918,485,212 - Step 5: Solve for x
x = 17,551,721,918,485,212/138,438,712.08 - Step 6: Final answer
x = 126,783,337.22
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.