Finding the Fourth Proportional to 472,392,938.80, 708,589,408.20 and 435,085,780.60
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Solution
The fourth proportional to 472,392,938.80, 708,589,408.20 and 435,085,780.60 is: 652,628,670.90
Step by Step Solution
- Step 1: Write the proportion equation
472,392,938.80 : 708,589,408.20 = 435,085,780.60 : x - Step 2: Convert to fraction form
472,392,938.80/708,589,408.20 = 435,085,780.60/x - Step 3: Cross multiply
472,392,938.80x = 708,589,408.20 × 435,085,780.60 - Step 4: Simplify right side
472,392,938.80x = 308,297,175,791,589,056 - Step 5: Solve for x
x = 308,297,175,791,589,056/472,392,938.80 - Step 6: Final answer
x = 652,628,670.90
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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.