Finding the Fourth Proportional to 139,953,857.12, 193,174,737.48 and 81,235,439.54
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Solution
The fourth proportional to 139,953,857.12, 193,174,737.48 and 81,235,439.54 is: 112,127,204.14
Step by Step Solution
- Step 1: Write the proportion equation
139,953,857.12 : 193,174,737.48 = 81,235,439.54 : x - Step 2: Convert to fraction form
139,953,857.12/193,174,737.48 = 81,235,439.54/x - Step 3: Cross multiply
139,953,857.12x = 193,174,737.48 × 81,235,439.54 - Step 4: Simplify right side
139,953,857.12x = 15,692,634,707,211,912 - Step 5: Solve for x
x = 15,692,634,707,211,912/139,953,857.12 - Step 6: Final answer
x = 112,127,204.14
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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.