Finding the Fourth Proportional to 73,993,438,979.87, 102,111,021,363.58 and 40,160,741,064.08
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Solution
The fourth proportional to 73,993,438,979.87, 102,111,021,363.58 and 40,160,741,064.08 is: 55,421,863,685.60
Step by Step Solution
- Step 1: Write the proportion equation
73,993,438,979.87 : 102,111,021,363.58 = 40,160,741,064.08 : x - Step 2: Convert to fraction form
73,993,438,979.87/102,111,021,363.58 = 40,160,741,064.08/x - Step 3: Cross multiply
73,993,438,979.87x = 102,111,021,363.58 × 40,160,741,064.08 - Step 4: Simplify right side
73,993,438,979.87x = 4,100,854,288,770,966,487,040 - Step 5: Solve for x
x = 4,100,854,288,770,966,487,040/73,993,438,979.87 - Step 6: Final answer
x = 55,421,863,685.60
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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.