Finding the Fourth Proportional to 153,532,757.48, 211,851,529.57 and 87,444,830.63
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Solution
The fourth proportional to 153,532,757.48, 211,851,529.57 and 87,444,830.63 is: 120,660,381.70
Step by Step Solution
- Step 1: Write the proportion equation
153,532,757.48 : 211,851,529.57 = 87,444,830.63 : x - Step 2: Convert to fraction form
153,532,757.48/211,851,529.57 = 87,444,830.63/x - Step 3: Cross multiply
153,532,757.48x = 211,851,529.57 × 87,444,830.63 - Step 4: Simplify right side
153,532,757.48x = 18,525,321,120,895,828 - Step 5: Solve for x
x = 18,525,321,120,895,828/153,532,757.48 - Step 6: Final answer
x = 120,660,381.70
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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.