Finding the Fourth Proportional to 47,762,811.80, 71,644,217.70 and 47,762,811.80
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Solution
The fourth proportional to 47,762,811.80, 71,644,217.70 and 47,762,811.80 is: 71,644,217.70
Step by Step Solution
- Step 1: Write the proportion equation
47,762,811.80 : 71,644,217.70 = 47,762,811.80 : x - Step 2: Convert to fraction form
47,762,811.80/71,644,217.70 = 47,762,811.80/x - Step 3: Cross multiply
47,762,811.80x = 71,644,217.70 × 47,762,811.80 - Step 4: Simplify right side
47,762,811.80x = 3,421,929,286,563,329 - Step 5: Solve for x
x = 3,421,929,286,563,329/47,762,811.80 - Step 6: Final answer
x = 71,644,217.70
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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.