Finding the Fourth Proportional to 126,028,989.40, 189,185,201.70 and 97,402,034.20
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Solution
The fourth proportional to 126,028,989.40, 189,185,201.70 and 97,402,034.20 is: 146,212,578.34
Step by Step Solution
- Step 1: Write the proportion equation
126,028,989.40 : 189,185,201.70 = 97,402,034.20 : x - Step 2: Convert to fraction form
126,028,989.40/189,185,201.70 = 97,402,034.20/x - Step 3: Cross multiply
126,028,989.40x = 189,185,201.70 × 97,402,034.20 - Step 4: Simplify right side
126,028,989.40x = 18,427,023,486,117,296 - Step 5: Solve for x
x = 18,427,023,486,117,296/126,028,989.40 - Step 6: Final answer
x = 146,212,578.34
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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.