Finding the Fourth Proportional to 7,389,580,220.76, 10,197,539,520.57 and 4,002,405,242.52
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Solution
The fourth proportional to 7,389,580,220.76, 10,197,539,520.57 and 4,002,405,242.52 is: 5,523,275,263.09
Step by Step Solution
- Step 1: Write the proportion equation
7,389,580,220.76 : 10,197,539,520.57 = 4,002,405,242.52 : x - Step 2: Convert to fraction form
7,389,580,220.76/10,197,539,520.57 = 4,002,405,242.52/x - Step 3: Cross multiply
7,389,580,220.76x = 10,197,539,520.57 × 4,002,405,242.52 - Step 4: Simplify right side
7,389,580,220.76x = 40,814,685,637,934,252,032 - Step 5: Solve for x
x = 40,814,685,637,934,252,032/7,389,580,220.76 - Step 6: Final answer
x = 5,523,275,263.09
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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.