Finding the Fourth Proportional to 874,584,005.20, 1,312,379,892.60 and 329,716,574.80
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Solution
The fourth proportional to 874,584,005.20, 1,312,379,892.60 and 329,716,574.80 is: 494,764,825.85
Step by Step Solution
- Step 1: Write the proportion equation
874,584,005.20 : 1,312,379,892.60 = 329,716,574.80 : x - Step 2: Convert to fraction form
874,584,005.20/1,312,379,892.60 = 329,716,574.80/x - Step 3: Cross multiply
874,584,005.20x = 1,312,379,892.60 × 329,716,574.80 - Step 4: Simplify right side
874,584,005.20x = 432,713,403,024,463,872 - Step 5: Solve for x
x = 432,713,403,024,463,872/874,584,005.20 - Step 6: Final answer
x = 494,764,825.85
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1.5x scale
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.