Finding the Fourth Proportional to 121,863,540.52, 168,171,685.92 and 69,653,697.19
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Solution
The fourth proportional to 121,863,540.52, 168,171,685.92 and 69,653,697.19 is: 96,122,102.12
Step by Step Solution
- Step 1: Write the proportion equation
121,863,540.52 : 168,171,685.92 = 69,653,697.19 : x - Step 2: Convert to fraction form
121,863,540.52/168,171,685.92 = 69,653,697.19/x - Step 3: Cross multiply
121,863,540.52x = 168,171,685.92 × 69,653,697.19 - Step 4: Simplify right side
121,863,540.52x = 11,713,779,687,003,466 - Step 5: Solve for x
x = 11,713,779,687,003,466/121,863,540.52 - Step 6: Final answer
x = 96,122,102.12
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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.