Finding the Fourth Proportional to 1,728,887,634.67, 2,385,865,706.13 and 935,933,588.12
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Solution
The fourth proportional to 1,728,887,634.67, 2,385,865,706.13 and 935,933,588.12 is: 1,291,588,768.60
Step by Step Solution
- Step 1: Write the proportion equation
1,728,887,634.67 : 2,385,865,706.13 = 935,933,588.12 : x - Step 2: Convert to fraction form
1,728,887,634.67/2,385,865,706.13 = 935,933,588.12/x - Step 3: Cross multiply
1,728,887,634.67x = 2,385,865,706.13 × 935,933,588.12 - Step 4: Simplify right side
1,728,887,634.67x = 2,233,011,851,110,708,480 - Step 5: Solve for x
x = 2,233,011,851,110,708,480/1,728,887,634.67 - Step 6: Final answer
x = 1,291,588,768.60
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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.