Finding the Fourth Proportional to 138,103,139.12, 207,088,612.52 and 65,259,126.32
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Solution
The fourth proportional to 138,103,139.12, 207,088,612.52 and 65,259,126.32 is: 97,857,456.46
Step by Step Solution
- Step 1: Write the proportion equation
138,103,139.12 : 207,088,612.52 = 65,259,126.32 : x - Step 2: Convert to fraction form
138,103,139.12/207,088,612.52 = 65,259,126.32/x - Step 3: Cross multiply
138,103,139.12x = 207,088,612.52 × 65,259,126.32 - Step 4: Simplify right side
138,103,139.12x = 13,514,421,923,876,214 - Step 5: Solve for x
x = 13,514,421,923,876,214/138,103,139.12 - Step 6: Final answer
x = 97,857,456.46
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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.