Finding the Fourth Proportional to 5,220,230,597.29, 7,830,133,540.97 and 1,289,837,778.96
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Solution
The fourth proportional to 5,220,230,597.29, 7,830,133,540.97 and 1,289,837,778.96 is: 1,934,704,198.84
Step by Step Solution
- Step 1: Write the proportion equation
5,220,230,597.29 : 7,830,133,540.97 = 1,289,837,778.96 : x - Step 2: Convert to fraction form
5,220,230,597.29/7,830,133,540.97 = 1,289,837,778.96/x - Step 3: Cross multiply
5,220,230,597.29x = 7,830,133,540.97 × 1,289,837,778.96 - Step 4: Simplify right side
5,220,230,597.29x = 10,099,602,055,475,988,480 - Step 5: Solve for x
x = 10,099,602,055,475,988,480/5,220,230,597.29 - Step 6: Final answer
x = 1,934,704,198.84
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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.