Finding the Third Proportional to 418,515,442 and 689,129,448
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Solution
The third proportional to 418,515,442 and 689,129,448 is: 1,134,723,712.54
Step by Step Solution
- Step 1: Write the proportion equation
418,515,442 : 689,129,448 = 689,129,448 : x - Step 2: Convert to fraction form
418,515,442/689,129,448 = 689,129,448/x - Step 3: Cross multiply
418,515,442x = 689,129,448 × 689,129,448 - Step 4: Simplify right side
418,515,442x = 474,899,396,100,784,704 - Step 5: Solve for x
x = 474,899,396,100,784,704/418,515,442 - Step 6: Final answer
x = 1,134,723,712.54
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These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.