Finding the Fourth Proportional to 125,832,693.71, 173,670,248.29 and 72,942,485.84
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Solution
The fourth proportional to 125,832,693.71, 173,670,248.29 and 72,942,485.84 is: 100,672,879.63
Step by Step Solution
- Step 1: Write the proportion equation
125,832,693.71 : 173,670,248.29 = 72,942,485.84 : x - Step 2: Convert to fraction form
125,832,693.71/173,670,248.29 = 72,942,485.84/x - Step 3: Cross multiply
125,832,693.71x = 173,670,248.29 × 72,942,485.84 - Step 4: Simplify right side
125,832,693.71x = 12,667,939,626,460,298 - Step 5: Solve for x
x = 12,667,939,626,460,298/125,832,693.71 - Step 6: Final answer
x = 100,672,879.63
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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.