Finding the Fourth Proportional to 266,040,686.10, 399,061,029.15 and 163,472,135.70
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Solution
The fourth proportional to 266,040,686.10, 399,061,029.15 and 163,472,135.70 is: 245,208,203.55
Step by Step Solution
- Step 1: Write the proportion equation
266,040,686.10 : 399,061,029.15 = 163,472,135.70 : x - Step 2: Convert to fraction form
266,040,686.10/399,061,029.15 = 163,472,135.70/x - Step 3: Cross multiply
266,040,686.10x = 399,061,029.15 × 163,472,135.70 - Step 4: Simplify right side
266,040,686.10x = 65,235,358,709,790,448 - Step 5: Solve for x
x = 65,235,358,709,790,448/266,040,686.10 - Step 6: Final answer
x = 245,208,203.55
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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.