Finding the Fourth Proportional to 245,574,202.46, 338,890,320.87 and 135,563,553.50
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Solution
The fourth proportional to 245,574,202.46, 338,890,320.87 and 135,563,553.50 is: 187,076,556.43
Step by Step Solution
- Step 1: Write the proportion equation
245,574,202.46 : 338,890,320.87 = 135,563,553.50 : x - Step 2: Convert to fraction form
245,574,202.46/338,890,320.87 = 135,563,553.50/x - Step 3: Cross multiply
245,574,202.46x = 338,890,320.87 × 135,563,553.50 - Step 4: Simplify right side
245,574,202.46x = 45,941,176,143,892,416 - Step 5: Solve for x
x = 45,941,176,143,892,416/245,574,202.46 - Step 6: Final answer
x = 187,076,556.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.