Finding the Fourth Proportional to 935,085,072.62, 1,290,418,911.88 and 517,414,961.90
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Solution
The fourth proportional to 935,085,072.62, 1,290,418,911.88 and 517,414,961.90 is: 714,033,483.88
Step by Step Solution
- Step 1: Write the proportion equation
935,085,072.62 : 1,290,418,911.88 = 517,414,961.90 : x - Step 2: Convert to fraction form
935,085,072.62/1,290,418,911.88 = 517,414,961.90/x - Step 3: Cross multiply
935,085,072.62x = 1,290,418,911.88 × 517,414,961.90 - Step 4: Simplify right side
935,085,072.62x = 667,682,052,125,429,632 - Step 5: Solve for x
x = 667,682,052,125,429,632/935,085,072.62 - Step 6: Final answer
x = 714,033,483.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.