Finding the Fourth Proportional to 215,722,987.21, 323,582,529.14 and 68,170,571.37
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Solution
The fourth proportional to 215,722,987.21, 323,582,529.14 and 68,170,571.37 is: 102,255,240.31
Step by Step Solution
- Step 1: Write the proportion equation
215,722,987.21 : 323,582,529.14 = 68,170,571.37 : x - Step 2: Convert to fraction form
215,722,987.21/323,582,529.14 = 68,170,571.37/x - Step 3: Cross multiply
215,722,987.21x = 323,582,529.14 × 68,170,571.37 - Step 4: Simplify right side
215,722,987.21x = 22,058,805,896,482,624 - Step 5: Solve for x
x = 22,058,805,896,482,624/215,722,987.21 - Step 6: Final answer
x = 102,255,240.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.