Finding the Fourth Proportional to 219,625,079.49, 302,806,843.95 and 160,785,593.18
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Solution
The fourth proportional to 219,625,079.49, 302,806,843.95 and 160,785,593.18 is: 221,682,232.90
Step by Step Solution
- Step 1: Write the proportion equation
219,625,079.49 : 302,806,843.95 = 160,785,593.18 : x - Step 2: Convert to fraction form
219,625,079.49/302,806,843.95 = 160,785,593.18/x - Step 3: Cross multiply
219,625,079.49x = 302,806,843.95 × 160,785,593.18 - Step 4: Simplify right side
219,625,079.49x = 48,686,978,021,950,408 - Step 5: Solve for x
x = 48,686,978,021,950,408/219,625,079.49 - Step 6: Final answer
x = 221,682,232.90
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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.