Finding the Fourth Proportional to 133,059,420.20, 199,589,130.30 and 75,529,461.80
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Solution
The fourth proportional to 133,059,420.20, 199,589,130.30 and 75,529,461.80 is: 113,294,192.70
Step by Step Solution
- Step 1: Write the proportion equation
133,059,420.20 : 199,589,130.30 = 75,529,461.80 : x - Step 2: Convert to fraction form
133,059,420.20/199,589,130.30 = 75,529,461.80/x - Step 3: Cross multiply
133,059,420.20x = 199,589,130.30 × 75,529,461.80 - Step 4: Simplify right side
133,059,420.20x = 15,074,859,592,689,072 - Step 5: Solve for x
x = 15,074,859,592,689,072/133,059,420.20 - Step 6: Final answer
x = 113,294,192.70
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1.5x scale
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.