Finding the Fourth Proportional to 13,306,894.70, 19,960,342.05 and 4,787,509.10
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Solution
The fourth proportional to 13,306,894.70, 19,960,342.05 and 4,787,509.10 is: 7,181,263.65
Step by Step Solution
- Step 1: Write the proportion equation
13,306,894.70 : 19,960,342.05 = 4,787,509.10 : x - Step 2: Convert to fraction form
13,306,894.70/19,960,342.05 = 4,787,509.10/x - Step 3: Cross multiply
13,306,894.70x = 19,960,342.05 × 4,787,509.10 - Step 4: Simplify right side
13,306,894.70x = 95,560,319,203,487.66 - Step 5: Solve for x
x = 95,560,319,203,487.66/13,306,894.70 - Step 6: Final answer
x = 7,181,263.65
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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.