Finding the Fourth Proportional to 78,457,543.05, 117,686,314.58 and 24,604,768.65
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Solution
The fourth proportional to 78,457,543.05, 117,686,314.58 and 24,604,768.65 is: 36,907,152.98
Step by Step Solution
- Step 1: Write the proportion equation
78,457,543.05 : 117,686,314.58 = 24,604,768.65 : x - Step 2: Convert to fraction form
78,457,543.05/117,686,314.58 = 24,604,768.65/x - Step 3: Cross multiply
78,457,543.05x = 117,686,314.58 × 24,604,768.65 - Step 4: Simplify right side
78,457,543.05x = 2,895,644,543,388,998 - Step 5: Solve for x
x = 2,895,644,543,388,998/78,457,543.05 - Step 6: Final answer
x = 36,907,152.98
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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.