Finding the Fourth Proportional to 155,520,919.80, 233,281,379.70 and 125,287,831.80
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Solution
The fourth proportional to 155,520,919.80, 233,281,379.70 and 125,287,831.80 is: 187,931,747.70
Step by Step Solution
- Step 1: Write the proportion equation
155,520,919.80 : 233,281,379.70 = 125,287,831.80 : x - Step 2: Convert to fraction form
155,520,919.80/233,281,379.70 = 125,287,831.80/x - Step 3: Cross multiply
155,520,919.80x = 233,281,379.70 × 125,287,831.80 - Step 4: Simplify right side
155,520,919.80x = 29,227,318,261,925,532 - Step 5: Solve for x
x = 29,227,318,261,925,532/155,520,919.80 - Step 6: Final answer
x = 187,931,747.70
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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.