Finding the Fourth Proportional to 4,723,428.80, 6,518,122.08 and 2,630,379.20
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Solution
The fourth proportional to 4,723,428.80, 6,518,122.08 and 2,630,379.20 is: 3,629,806.54
Step by Step Solution
- Step 1: Write the proportion equation
4,723,428.80 : 6,518,122.08 = 2,630,379.20 : x - Step 2: Convert to fraction form
4,723,428.80/6,518,122.08 = 2,630,379.20/x - Step 3: Cross multiply
4,723,428.80x = 6,518,122.08 × 2,630,379.20 - Step 4: Simplify right side
4,723,428.80x = 17,145,132,742,292.74 - Step 5: Solve for x
x = 17,145,132,742,292.74/4,723,428.80 - Step 6: Final answer
x = 3,629,806.54
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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.