Finding the Fourth Proportional to 79,417,528.92, 118,328,074.56 and 74,957,077.98
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Solution
The fourth proportional to 79,417,528.92, 118,328,074.56 and 74,957,077.98 is: 111,682,229.76
Step by Step Solution
- Step 1: Write the proportion equation
79,417,528.92 : 118,328,074.56 = 74,957,077.98 : x - Step 2: Convert to fraction form
79,417,528.92/118,328,074.56 = 74,957,077.98/x - Step 3: Cross multiply
79,417,528.92x = 118,328,074.56 × 74,957,077.98 - Step 4: Simplify right side
79,417,528.92x = 8,869,526,712,017,175 - Step 5: Solve for x
x = 8,869,526,712,017,175/79,417,528.92 - Step 6: Final answer
x = 111,682,229.76
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.