Finding the Fourth Proportional to 170,170,987.56, 234,944,569.68 and 138,883,776.63
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Solution
The fourth proportional to 170,170,987.56, 234,944,569.68 and 138,883,776.63 is: 191,748,250.41
Step by Step Solution
- Step 1: Write the proportion equation
170,170,987.56 : 234,944,569.68 = 138,883,776.63 : x - Step 2: Convert to fraction form
170,170,987.56/234,944,569.68 = 138,883,776.63/x - Step 3: Cross multiply
170,170,987.56x = 234,944,569.68 × 138,883,776.63 - Step 4: Simplify right side
170,170,987.56x = 32,629,989,133,999,452 - Step 5: Solve for x
x = 32,629,989,133,999,452/170,170,987.56 - Step 6: Final answer
x = 191,748,250.41
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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.