Finding the Fourth Proportional to 4,668,595.48, 6,447,976.16 and 3,138,045.40
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Solution
The fourth proportional to 4,668,595.48, 6,447,976.16 and 3,138,045.40 is: 4,334,074.78
Step by Step Solution
- Step 1: Write the proportion equation
4,668,595.48 : 6,447,976.16 = 3,138,045.40 : x - Step 2: Convert to fraction form
4,668,595.48/6,447,976.16 = 3,138,045.40/x - Step 3: Cross multiply
4,668,595.48x = 6,447,976.16 × 3,138,045.40 - Step 4: Simplify right side
4,668,595.48x = 20,234,041,928,197.66 - Step 5: Solve for x
x = 20,234,041,928,197.66/4,668,595.48 - Step 6: Final answer
x = 4,334,074.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.