Finding the Fourth Proportional to 130,622,121.05, 180,258,474.06 and 71,884,785.96
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Solution
The fourth proportional to 130,622,121.05, 180,258,474.06 and 71,884,785.96 is: 99,200,975.47
Step by Step Solution
- Step 1: Write the proportion equation
130,622,121.05 : 180,258,474.06 = 71,884,785.96 : x - Step 2: Convert to fraction form
130,622,121.05/180,258,474.06 = 71,884,785.96/x - Step 3: Cross multiply
130,622,121.05x = 180,258,474.06 × 71,884,785.96 - Step 4: Simplify right side
130,622,121.05x = 12,957,841,825,279,312 - Step 5: Solve for x
x = 12,957,841,825,279,312/130,622,121.05 - Step 6: Final answer
x = 99,200,975.47
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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.