Finding the Fourth Proportional to 74,560,854.76, 102,840,976.82 and 49,768,541.62
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Solution
The fourth proportional to 74,560,854.76, 102,840,976.82 and 49,768,541.62 is: 68,645,208.69
Step by Step Solution
- Step 1: Write the proportion equation
74,560,854.76 : 102,840,976.82 = 49,768,541.62 : x - Step 2: Convert to fraction form
74,560,854.76/102,840,976.82 = 49,768,541.62/x - Step 3: Cross multiply
74,560,854.76x = 102,840,976.82 × 49,768,541.62 - Step 4: Simplify right side
74,560,854.76x = 5,118,245,435,232,047 - Step 5: Solve for x
x = 5,118,245,435,232,047/74,560,854.76 - Step 6: Final answer
x = 68,645,208.69
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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.