Finding the Fourth Proportional to 163,943,441.20, 245,915,161.80 and 42,774,893.20
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Solution
The fourth proportional to 163,943,441.20, 245,915,161.80 and 42,774,893.20 is: 64,162,339.80
Step by Step Solution
- Step 1: Write the proportion equation
163,943,441.20 : 245,915,161.80 = 42,774,893.20 : x - Step 2: Convert to fraction form
163,943,441.20/245,915,161.80 = 42,774,893.20/x - Step 3: Cross multiply
163,943,441.20x = 245,915,161.80 × 42,774,893.20 - Step 4: Simplify right side
163,943,441.20x = 10,518,994,782,255,722 - Step 5: Solve for x
x = 10,518,994,782,255,722/163,943,441.20 - Step 6: Final answer
x = 64,162,339.80
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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.