Finding the Fourth Proportional to 76,961,742.42, 115,442,613.51 and 19,454,013.58
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Solution
The fourth proportional to 76,961,742.42, 115,442,613.51 and 19,454,013.58 is: 29,181,020.34
Step by Step Solution
- Step 1: Write the proportion equation
76,961,742.42 : 115,442,613.51 = 19,454,013.58 : x - Step 2: Convert to fraction form
76,961,742.42/115,442,613.51 = 19,454,013.58/x - Step 3: Cross multiply
76,961,742.42x = 115,442,613.51 × 19,454,013.58 - Step 4: Simplify right side
76,961,742.42x = 2,245,822,171,250,513.75 - Step 5: Solve for x
x = 2,245,822,171,250,513.75/76,961,742.42 - Step 6: Final answer
x = 29,181,020.34
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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.