Finding the Fourth Proportional to 6,434,083,917.80, 9,651,125,876.70 and 3,985,203,789.80
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Solution
The fourth proportional to 6,434,083,917.80, 9,651,125,876.70 and 3,985,203,789.80 is: 5,977,805,684.70
Step by Step Solution
- Step 1: Write the proportion equation
6,434,083,917.80 : 9,651,125,876.70 = 3,985,203,789.80 : x - Step 2: Convert to fraction form
6,434,083,917.80/9,651,125,876.70 = 3,985,203,789.80/x - Step 3: Cross multiply
6,434,083,917.80x = 9,651,125,876.70 × 3,985,203,789.80 - Step 4: Simplify right side
6,434,083,917.80x = 38,461,703,419,661,688,832 - Step 5: Solve for x
x = 38,461,703,419,661,688,832/6,434,083,917.80 - Step 6: Final answer
x = 5,977,805,684.70
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1.5x scale
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.