Finding the Fourth Proportional to 272,153,107.80, 408,229,661.70 and 260,815,699.80
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Solution
The fourth proportional to 272,153,107.80, 408,229,661.70 and 260,815,699.80 is: 391,223,549.70
Step by Step Solution
- Step 1: Write the proportion equation
272,153,107.80 : 408,229,661.70 = 260,815,699.80 : x - Step 2: Convert to fraction form
272,153,107.80/408,229,661.70 = 260,815,699.80/x - Step 3: Cross multiply
272,153,107.80x = 408,229,661.70 × 260,815,699.80 - Step 4: Simplify right side
272,153,107.80x = 106,472,704,895,402,752 - Step 5: Solve for x
x = 106,472,704,895,402,752/272,153,107.80 - Step 6: Final answer
x = 391,223,549.70
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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.