Finding the Fourth Proportional to 74,887,625.70, 112,331,438.55 and 66,384,569.70
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Solution
The fourth proportional to 74,887,625.70, 112,331,438.55 and 66,384,569.70 is: 99,576,854.55
Step by Step Solution
- Step 1: Write the proportion equation
74,887,625.70 : 112,331,438.55 = 66,384,569.70 : x - Step 2: Convert to fraction form
74,887,625.70/112,331,438.55 = 66,384,569.70/x - Step 3: Cross multiply
74,887,625.70x = 112,331,438.55 × 66,384,569.70 - Step 4: Simplify right side
74,887,625.70x = 7,457,074,211,923,742 - Step 5: Solve for x
x = 7,457,074,211,923,742/74,887,625.70 - Step 6: Final answer
x = 99,576,854.55
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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.