Finding the Fourth Proportional to 125,686,572.57, 173,444,751.57 and 72,765,511.94
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Solution
The fourth proportional to 125,686,572.57, 173,444,751.57 and 72,765,511.94 is: 100,414,832.57
Step by Step Solution
- Step 1: Write the proportion equation
125,686,572.57 : 173,444,751.57 = 72,765,511.94 : x - Step 2: Convert to fraction form
125,686,572.57/173,444,751.57 = 72,765,511.94/x - Step 3: Cross multiply
125,686,572.57x = 173,444,751.57 × 72,765,511.94 - Step 4: Simplify right side
125,686,572.57x = 12,620,796,140,429,944 - Step 5: Solve for x
x = 12,620,796,140,429,944/125,686,572.57 - Step 6: Final answer
x = 100,414,832.57
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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.