Finding the Fourth Proportional to 1,310,418,242.88, 1,965,903,762.94 and 425,034,840.75
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Solution
The fourth proportional to 1,310,418,242.88, 1,965,903,762.94 and 425,034,840.75 is: 637,641,911.16
Step by Step Solution
- Step 1: Write the proportion equation
1,310,418,242.88 : 1,965,903,762.94 = 425,034,840.75 : x - Step 2: Convert to fraction form
1,310,418,242.88/1,965,903,762.94 = 425,034,840.75/x - Step 3: Cross multiply
1,310,418,242.88x = 1,965,903,762.94 × 425,034,840.75 - Step 4: Simplify right side
1,310,418,242.88x = 835,577,592,816,084,736 - Step 5: Solve for x
x = 835,577,592,816,084,736/1,310,418,242.88 - Step 6: Final answer
x = 637,641,911.16
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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.