Finding the Fourth Proportional to 7,864,242,489.79, 11,796,282,939.87 and 4,545,945,645.55
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Solution
The fourth proportional to 7,864,242,489.79, 11,796,282,939.87 and 4,545,945,645.55 is: 6,818,871,764.67
Step by Step Solution
- Step 1: Write the proportion equation
7,864,242,489.79 : 11,796,282,939.87 = 4,545,945,645.55 : x - Step 2: Convert to fraction form
7,864,242,489.79/11,796,282,939.87 = 4,545,945,645.55/x - Step 3: Cross multiply
7,864,242,489.79x = 11,796,282,939.87 × 4,545,945,645.55 - Step 4: Simplify right side
7,864,242,489.79x = 53,625,261,064,177,786,880 - Step 5: Solve for x
x = 53,625,261,064,177,786,880/7,864,242,489.79 - Step 6: Final answer
x = 6,818,871,764.67
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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.