Finding the Fourth Proportional to 212,668,277.20, 318,876,444.60 and 110,631,605.20
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Solution
The fourth proportional to 212,668,277.20, 318,876,444.60 and 110,631,605.20 is: 165,881,876.65
Step by Step Solution
- Step 1: Write the proportion equation
212,668,277.20 : 318,876,444.60 = 110,631,605.20 : x - Step 2: Convert to fraction form
212,668,277.20/318,876,444.60 = 110,631,605.20/x - Step 3: Cross multiply
212,668,277.20x = 318,876,444.60 × 110,631,605.20 - Step 4: Simplify right side
212,668,277.20x = 35,277,812,926,566,876 - Step 5: Solve for x
x = 35,277,812,926,566,876/212,668,277.20 - Step 6: Final answer
x = 165,881,876.65
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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.