Finding the Fourth Proportional to 72,028,342.36, 99,361,916.22 and 48,815,530.84
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Solution
The fourth proportional to 72,028,342.36, 99,361,916.22 and 48,815,530.84 is: 67,340,223.68
Step by Step Solution
- Step 1: Write the proportion equation
72,028,342.36 : 99,361,916.22 = 48,815,530.84 : x - Step 2: Convert to fraction form
72,028,342.36/99,361,916.22 = 48,815,530.84/x - Step 3: Cross multiply
72,028,342.36x = 99,361,916.22 × 48,815,530.84 - Step 4: Simplify right side
72,028,342.36x = 4,850,404,685,558,907 - Step 5: Solve for x
x = 4,850,404,685,558,907/72,028,342.36 - Step 6: Final answer
x = 67,340,223.68
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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.