Finding the Third Proportional to 418,515,436 and 689,129,441
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Solution
The third proportional to 418,515,436 and 689,129,441 is: 1,134,723,705.75
Step by Step Solution
- Step 1: Write the proportion equation
418,515,436 : 689,129,441 = 689,129,441 : x - Step 2: Convert to fraction form
418,515,436/689,129,441 = 689,129,441/x - Step 3: Cross multiply
418,515,436x = 689,129,441 × 689,129,441 - Step 4: Simplify right side
418,515,436x = 474,899,386,452,972,480 - Step 5: Solve for x
x = 474,899,386,452,972,480/418,515,436 - Step 6: Final answer
x = 1,134,723,705.75
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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.