Finding the Fourth Proportional to 13,306,871.70, 19,960,307.55 and 4,787,486.10
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Solution
The fourth proportional to 13,306,871.70, 19,960,307.55 and 4,787,486.10 is: 7,181,229.15
Step by Step Solution
- Step 1: Write the proportion equation
13,306,871.70 : 19,960,307.55 = 4,787,486.10 : x - Step 2: Convert to fraction form
13,306,871.70/19,960,307.55 = 4,787,486.10/x - Step 3: Cross multiply
13,306,871.70x = 19,960,307.55 × 4,787,486.10 - Step 4: Simplify right side
13,306,871.70x = 95,559,694,947,350.05 - Step 5: Solve for x
x = 95,559,694,947,350.05/13,306,871.70 - Step 6: Final answer
x = 7,181,229.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.