Finding the Fourth Proportional to 218,482,657.80, 327,723,986.70 and 116,445,985.80
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Solution
The fourth proportional to 218,482,657.80, 327,723,986.70 and 116,445,985.80 is: 174,668,978.70
Step by Step Solution
- Step 1: Write the proportion equation
218,482,657.80 : 327,723,986.70 = 116,445,985.80 : x - Step 2: Convert to fraction form
218,482,657.80/327,723,986.70 = 116,445,985.80/x - Step 3: Cross multiply
218,482,657.80x = 327,723,986.70 × 116,445,985.80 - Step 4: Simplify right side
218,482,657.80x = 38,162,142,701,587,584 - Step 5: Solve for x
x = 38,162,142,701,587,584/218,482,657.80 - Step 6: Final answer
x = 174,668,978.70
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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.