Finding the Third Proportional to 198,257,908 and 278,697,858
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Solution
The third proportional to 198,257,908 and 278,697,858 is: 391,775,020.92
Step by Step Solution
- Step 1: Write the proportion equation
198,257,908 : 278,697,858 = 278,697,858 : x - Step 2: Convert to fraction form
198,257,908/278,697,858 = 278,697,858/x - Step 3: Cross multiply
198,257,908x = 278,697,858 × 278,697,858 - Step 4: Simplify right side
198,257,908x = 77,672,496,053,788,160 - Step 5: Solve for x
x = 77,672,496,053,788,160/198,257,908 - Step 6: Final answer
x = 391,775,020.92
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These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.