Finding the Fourth Proportional to 86,576,231.69, 129,865,188.29 and 69,261,417.98
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Solution
The fourth proportional to 86,576,231.69, 129,865,188.29 and 69,261,417.98 is: 103,892,799.57
Step by Step Solution
- Step 1: Write the proportion equation
86,576,231.69 : 129,865,188.29 = 69,261,417.98 : x - Step 2: Convert to fraction form
86,576,231.69/129,865,188.29 = 69,261,417.98/x - Step 3: Cross multiply
86,576,231.69x = 129,865,188.29 × 69,261,417.98 - Step 4: Simplify right side
86,576,231.69x = 8,994,647,086,209,457 - Step 5: Solve for x
x = 8,994,647,086,209,457/86,576,231.69 - Step 6: Final answer
x = 103,892,799.57
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.