Finding the Fourth Proportional to 168,712,418.40, 252,977,589.84 and 76,545,852
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Solution
The fourth proportional to 168,712,418.40, 252,977,589.84 and 76,545,852 is: 114,777,473.61
Step by Step Solution
- Step 1: Write the proportion equation
168,712,418.40 : 252,977,589.84 = 76,545,852 : x - Step 2: Convert to fraction form
168,712,418.40/252,977,589.84 = 76,545,852/x - Step 3: Cross multiply
168,712,418.40x = 252,977,589.84 × 76,545,852 - Step 4: Simplify right side
168,712,418.40x = 19,364,385,151,209,344 - Step 5: Solve for x
x = 19,364,385,151,209,344/168,712,418.40 - Step 6: Final answer
x = 114,777,473.61
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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.