Finding the Fourth Proportional to 129,024,278.20, 193,553,006.10 and 64,361,135.80
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Solution
The fourth proportional to 129,024,278.20, 193,553,006.10 and 64,361,135.80 is: 96,549,978.69
Step by Step Solution
- Step 1: Write the proportion equation
129,024,278.20 : 193,553,006.10 = 64,361,135.80 : x - Step 2: Convert to fraction form
129,024,278.20/193,553,006.10 = 64,361,135.80/x - Step 3: Cross multiply
129,024,278.20x = 193,553,006.10 × 64,361,135.80 - Step 4: Simplify right side
129,024,278.20x = 12,457,291,310,100,328 - Step 5: Solve for x
x = 12,457,291,310,100,328/129,024,278.20 - Step 6: Final answer
x = 96,549,978.69
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.