Finding the Third Proportional to 418,515,446 and 689,129,454
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Solution
The third proportional to 418,515,446 and 689,129,454 is: 1,134,723,721.45
Step by Step Solution
- Step 1: Write the proportion equation
418,515,446 : 689,129,454 = 689,129,454 : x - Step 2: Convert to fraction form
418,515,446/689,129,454 = 689,129,454/x - Step 3: Cross multiply
418,515,446x = 689,129,454 × 689,129,454 - Step 4: Simplify right side
418,515,446x = 474,899,404,370,338,112 - Step 5: Solve for x
x = 474,899,404,370,338,112/418,515,446 - Step 6: Final answer
x = 1,134,723,721.45
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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.