Finding the Fourth Proportional to 239,576,765.58, 330,616,156.95 and 129,568,478.58
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Solution
The fourth proportional to 239,576,765.58, 330,616,156.95 and 129,568,478.58 is: 178,804,619.66
Step by Step Solution
- Step 1: Write the proportion equation
239,576,765.58 : 330,616,156.95 = 129,568,478.58 : x - Step 2: Convert to fraction form
239,576,765.58/330,616,156.95 = 129,568,478.58/x - Step 3: Cross multiply
239,576,765.58x = 330,616,156.95 × 129,568,478.58 - Step 4: Simplify right side
239,576,765.58x = 42,837,432,449,977,992 - Step 5: Solve for x
x = 42,837,432,449,977,992/239,576,765.58 - Step 6: Final answer
x = 178,804,619.66
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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.