Finding the Fourth Proportional to 205,468,329.60, 308,248,683.84 and 69,149,761.92
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Solution
The fourth proportional to 205,468,329.60, 308,248,683.84 and 69,149,761.92 is: 103,740,187.80
Step by Step Solution
- Step 1: Write the proportion equation
205,468,329.60 : 308,248,683.84 = 69,149,761.92 : x - Step 2: Convert to fraction form
205,468,329.60/308,248,683.84 = 69,149,761.92/x - Step 3: Cross multiply
205,468,329.60x = 308,248,683.84 × 69,149,761.92 - Step 4: Simplify right side
205,468,329.60x = 21,315,323,099,689,352 - Step 5: Solve for x
x = 21,315,323,099,689,352/205,468,329.60 - Step 6: Final answer
x = 103,740,187.80
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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.