Finding the Fourth Proportional to 140,961,949.20, 211,442,923.80 and 102,698,197.20
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Solution
The fourth proportional to 140,961,949.20, 211,442,923.80 and 102,698,197.20 is: 154,047,295.80
Step by Step Solution
- Step 1: Write the proportion equation
140,961,949.20 : 211,442,923.80 = 102,698,197.20 : x - Step 2: Convert to fraction form
140,961,949.20/211,442,923.80 = 102,698,197.20/x - Step 3: Cross multiply
140,961,949.20x = 211,442,923.80 × 102,698,197.20 - Step 4: Simplify right side
140,961,949.20x = 21,714,807,084,956,976 - Step 5: Solve for x
x = 21,714,807,084,956,976/140,961,949.20 - Step 6: Final answer
x = 154,047,295.80
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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.