Finding the Fourth Proportional to 1,420,269,139.26, 1,960,031,942.52 and 793,737,548.76
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Solution
The fourth proportional to 1,420,269,139.26, 1,960,031,942.52 and 793,737,548.76 is: 1,095,391,645.53
Step by Step Solution
- Step 1: Write the proportion equation
1,420,269,139.26 : 1,960,031,942.52 = 793,737,548.76 : x - Step 2: Convert to fraction form
1,420,269,139.26/1,960,031,942.52 = 793,737,548.76/x - Step 3: Cross multiply
1,420,269,139.26x = 1,960,031,942.52 × 793,737,548.76 - Step 4: Simplify right side
1,420,269,139.26x = 1,555,750,949,547,126,016 - Step 5: Solve for x
x = 1,555,750,949,547,126,016/1,420,269,139.26 - Step 6: Final answer
x = 1,095,391,645.53
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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.