Finding the Fourth Proportional to 236,757,219.80, 326,724,847.98 and 138,972,075.80
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Solution
The fourth proportional to 236,757,219.80, 326,724,847.98 and 138,972,075.80 is: 191,781,396.90
Step by Step Solution
- Step 1: Write the proportion equation
236,757,219.80 : 326,724,847.98 = 138,972,075.80 : x - Step 2: Convert to fraction form
236,757,219.80/326,724,847.98 = 138,972,075.80/x - Step 3: Cross multiply
236,757,219.80x = 326,724,847.98 × 138,972,075.80 - Step 4: Simplify right side
236,757,219.80x = 45,405,630,339,220,040 - Step 5: Solve for x
x = 45,405,630,339,220,040/236,757,219.80 - Step 6: Final answer
x = 191,781,396.90
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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.