Finding the Fourth Proportional to 418,918,531.84, 628,476,708.48 and 131,704,195.84
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Solution
The fourth proportional to 418,918,531.84, 628,476,708.48 and 131,704,195.84 is: 197,587,390.40
Step by Step Solution
- Step 1: Write the proportion equation
418,918,531.84 : 628,476,708.48 = 131,704,195.84 : x - Step 2: Convert to fraction form
418,918,531.84/628,476,708.48 = 131,704,195.84/x - Step 3: Cross multiply
418,918,531.84x = 628,476,708.48 × 131,704,195.84 - Step 4: Simplify right side
418,918,531.84x = 82,773,019,494,528,512 - Step 5: Solve for x
x = 82,773,019,494,528,512/418,918,531.84 - Step 6: Final answer
x = 197,587,390.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.