Finding the Fourth Proportional to 42,912,133.20, 64,318,433.40 and 17,336,350.80
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Solution
The fourth proportional to 42,912,133.20, 64,318,433.40 and 17,336,350.80 is: 25,984,420.75
Step by Step Solution
- Step 1: Write the proportion equation
42,912,133.20 : 64,318,433.40 = 17,336,350.80 : x - Step 2: Convert to fraction form
42,912,133.20/64,318,433.40 = 17,336,350.80/x - Step 3: Cross multiply
42,912,133.20x = 64,318,433.40 × 17,336,350.80 - Step 4: Simplify right side
42,912,133.20x = 1,115,046,924,328,836.75 - Step 5: Solve for x
x = 1,115,046,924,328,836.75/42,912,133.20 - Step 6: Final answer
x = 25,984,420.75
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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.