Finding the Fourth Proportional to 741,284,920.80, 1,111,927,381.20 and 469,858,975.20
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Solution
The fourth proportional to 741,284,920.80, 1,111,927,381.20 and 469,858,975.20 is: 704,788,462.80
Step by Step Solution
- Step 1: Write the proportion equation
741,284,920.80 : 1,111,927,381.20 = 469,858,975.20 : x - Step 2: Convert to fraction form
741,284,920.80/1,111,927,381.20 = 469,858,975.20/x - Step 3: Cross multiply
741,284,920.80x = 1,111,927,381.20 × 469,858,975.20 - Step 4: Simplify right side
741,284,920.80x = 522,449,059,827,451,776 - Step 5: Solve for x
x = 522,449,059,827,451,776/741,284,920.80 - Step 6: Final answer
x = 704,788,462.80
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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.