Finding the Fourth Proportional to 699,384,059.99, 965,585,575.41 and 445,208,831.55
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Solution
The fourth proportional to 699,384,059.99, 965,585,575.41 and 445,208,831.55 is: 614,665,461.21
Step by Step Solution
- Step 1: Write the proportion equation
699,384,059.99 : 965,585,575.41 = 445,208,831.55 : x - Step 2: Convert to fraction form
699,384,059.99/965,585,575.41 = 445,208,831.55/x - Step 3: Cross multiply
699,384,059.99x = 965,585,575.41 × 445,208,831.55 - Step 4: Simplify right side
699,384,059.99x = 429,887,225,792,234,496 - Step 5: Solve for x
x = 429,887,225,792,234,496/699,384,059.99 - Step 6: Final answer
x = 614,665,461.21
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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.