Finding the Fourth Proportional to 791,588,991.12, 1,187,382,698.28 and 542,348,673.36
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Solution
The fourth proportional to 791,588,991.12, 1,187,382,698.28 and 542,348,673.36 is: 813,522,469.88
Step by Step Solution
- Step 1: Write the proportion equation
791,588,991.12 : 1,187,382,698.28 = 542,348,673.36 : x - Step 2: Convert to fraction form
791,588,991.12/1,187,382,698.28 = 542,348,673.36/x - Step 3: Cross multiply
791,588,991.12x = 1,187,382,698.28 × 542,348,673.36 - Step 4: Simplify right side
791,588,991.12x = 643,975,431,182,775,168 - Step 5: Solve for x
x = 643,975,431,182,775,168/791,588,991.12 - Step 6: Final answer
x = 813,522,469.88
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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.