Finding the Fourth Proportional to 785,496,816.79, 1,178,532,527.60 and 365,518,487.97
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Solution
The fourth proportional to 785,496,816.79, 1,178,532,527.60 and 365,518,487.97 is: 548,411,423.58
Step by Step Solution
- Step 1: Write the proportion equation
785,496,816.79 : 1,178,532,527.60 = 365,518,487.97 : x - Step 2: Convert to fraction form
785,496,816.79/1,178,532,527.60 = 365,518,487.97/x - Step 3: Cross multiply
785,496,816.79x = 1,178,532,527.60 × 365,518,487.97 - Step 4: Simplify right side
785,496,816.79x = 430,775,427,511,814,272 - Step 5: Solve for x
x = 430,775,427,511,814,272/785,496,816.79 - Step 6: Final answer
x = 548,411,423.58
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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.