Finding the Fourth Proportional to 146,490,306.48, 202,156,844.40 and 79,509,288.65
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Solution
The fourth proportional to 146,490,306.48, 202,156,844.40 and 79,509,288.65 is: 109,722,938.53
Step by Step Solution
- Step 1: Write the proportion equation
146,490,306.48 : 202,156,844.40 = 79,509,288.65 : x - Step 2: Convert to fraction form
146,490,306.48/202,156,844.40 = 79,509,288.65/x - Step 3: Cross multiply
146,490,306.48x = 202,156,844.40 × 79,509,288.65 - Step 4: Simplify right side
146,490,306.48x = 16,073,346,892,961,952 - Step 5: Solve for x
x = 16,073,346,892,961,952/146,490,306.48 - Step 6: Final answer
x = 109,722,938.53
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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.