Finding the Fourth Proportional to 158,665,103.84, 236,929,202.48 and 129,576,647.64
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Solution
The fourth proportional to 158,665,103.84, 236,929,202.48 and 129,576,647.64 is: 193,492,400.30
Step by Step Solution
- Step 1: Write the proportion equation
158,665,103.84 : 236,929,202.48 = 129,576,647.64 : x - Step 2: Convert to fraction form
158,665,103.84/236,929,202.48 = 129,576,647.64/x - Step 3: Cross multiply
158,665,103.84x = 236,929,202.48 × 129,576,647.64 - Step 4: Simplify right side
158,665,103.84x = 30,700,491,785,377,172 - Step 5: Solve for x
x = 30,700,491,785,377,172/158,665,103.84 - Step 6: Final answer
x = 193,492,400.30
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.