Finding the Fourth Proportional to 30,975,460.21, 42,746,170.53 and 17,224,129.09
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Solution
The fourth proportional to 30,975,460.21, 42,746,170.53 and 17,224,129.09 is: 23,769,317.85
Step by Step Solution
- Step 1: Write the proportion equation
30,975,460.21 : 42,746,170.53 = 17,224,129.09 : x - Step 2: Convert to fraction form
30,975,460.21/42,746,170.53 = 17,224,129.09/x - Step 3: Cross multiply
30,975,460.21x = 42,746,170.53 × 17,224,129.09 - Step 4: Simplify right side
30,975,460.21x = 736,265,559,311,873.75 - Step 5: Solve for x
x = 736,265,559,311,873.75/30,975,460.21 - Step 6: Final answer
x = 23,769,317.85
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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.