Finding the Fourth Proportional to 5,103,021,605.70, 7,648,485,790.95 and 2,155,295,525.70
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Solution
The fourth proportional to 5,103,021,605.70, 7,648,485,790.95 and 2,155,295,525.70 is: 3,230,389,458.90
Step by Step Solution
- Step 1: Write the proportion equation
5,103,021,605.70 : 7,648,485,790.95 = 2,155,295,525.70 : x - Step 2: Convert to fraction form
5,103,021,605.70/7,648,485,790.95 = 2,155,295,525.70/x - Step 3: Cross multiply
5,103,021,605.70x = 7,648,485,790.95 × 2,155,295,525.70 - Step 4: Simplify right side
5,103,021,605.70x = 16,484,747,203,614,558,208 - Step 5: Solve for x
x = 16,484,747,203,614,558,208/5,103,021,605.70 - Step 6: Final answer
x = 3,230,389,458.90
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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.