Finding the Fourth Proportional to 113,571,000.70, 170,356,501.05 and 72,756,331.90
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Solution
The fourth proportional to 113,571,000.70, 170,356,501.05 and 72,756,331.90 is: 109,134,497.85
Step by Step Solution
- Step 1: Write the proportion equation
113,571,000.70 : 170,356,501.05 = 72,756,331.90 : x - Step 2: Convert to fraction form
113,571,000.70/170,356,501.05 = 72,756,331.90/x - Step 3: Cross multiply
113,571,000.70x = 170,356,501.05 × 72,756,331.90 - Step 4: Simplify right side
113,571,000.70x = 12,394,514,131,716,500 - Step 5: Solve for x
x = 12,394,514,131,716,500/113,571,000.70 - Step 6: Final answer
x = 109,134,497.85
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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.