Finding the Fourth Proportional to 138,452,836.86, 191,123,745.66 and 86,267,656.14
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Solution
The fourth proportional to 138,452,836.86, 191,123,745.66 and 86,267,656.14 is: 119,086,021.96
Step by Step Solution
- Step 1: Write the proportion equation
138,452,836.86 : 191,123,745.66 = 86,267,656.14 : x - Step 2: Convert to fraction form
138,452,836.86/191,123,745.66 = 86,267,656.14/x - Step 3: Cross multiply
138,452,836.86x = 191,123,745.66 × 86,267,656.14 - Step 4: Simplify right side
138,452,836.86x = 16,487,797,570,785,698 - Step 5: Solve for x
x = 16,487,797,570,785,698/138,452,836.86 - Step 6: Final answer
x = 119,086,021.96
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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.