Finding the Fourth Proportional to 19,431,158.20, 29,128,074.90 and 15,110,812.60
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Solution
The fourth proportional to 19,431,158.20, 29,128,074.90 and 15,110,812.60 is: 22,651,705.92
Step by Step Solution
- Step 1: Write the proportion equation
19,431,158.20 : 29,128,074.90 = 15,110,812.60 : x - Step 2: Convert to fraction form
19,431,158.20/29,128,074.90 = 15,110,812.60/x - Step 3: Cross multiply
19,431,158.20x = 29,128,074.90 × 15,110,812.60 - Step 4: Simplify right side
19,431,158.20x = 440,148,881,212,663.69 - Step 5: Solve for x
x = 440,148,881,212,663.69/19,431,158.20 - Step 6: Final answer
x = 22,651,705.92
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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.