Finding the Fourth Proportional to 1,664,271,920.80, 2,491,630,306.80 and 1,616,496,176.80
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Solution
The fourth proportional to 1,664,271,920.80, 2,491,630,306.80 and 1,616,496,176.80 is: 2,420,103,839.16
Step by Step Solution
- Step 1: Write the proportion equation
1,664,271,920.80 : 2,491,630,306.80 = 1,616,496,176.80 : x - Step 2: Convert to fraction form
1,664,271,920.80/2,491,630,306.80 = 1,616,496,176.80/x - Step 3: Cross multiply
1,664,271,920.80x = 2,491,630,306.80 × 1,616,496,176.80 - Step 4: Simplify right side
1,664,271,920.80x = 4,027,710,864,941,211,136 - Step 5: Solve for x
x = 4,027,710,864,941,211,136/1,664,271,920.80 - Step 6: Final answer
x = 2,420,103,839.16
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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.