Finding the Fourth Proportional to 5,638,829,491.71, 7,781,129,207.96 and 3,260,120,750.19
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Solution
The fourth proportional to 5,638,829,491.71, 7,781,129,207.96 and 3,260,120,750.19 is: 4,498,703,290.83
Step by Step Solution
- Step 1: Write the proportion equation
5,638,829,491.71 : 7,781,129,207.96 = 3,260,120,750.19 : x - Step 2: Convert to fraction form
5,638,829,491.71/7,781,129,207.96 = 3,260,120,750.19/x - Step 3: Cross multiply
5,638,829,491.71x = 7,781,129,207.96 × 3,260,120,750.19 - Step 4: Simplify right side
5,638,829,491.71x = 25,367,420,790,763,577,344 - Step 5: Solve for x
x = 25,367,420,790,763,577,344/5,638,829,491.71 - Step 6: Final answer
x = 4,498,703,290.83
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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.