Finding the Fourth Proportional to 618,220,918.98, 853,153,186.77 and 335,968,962.54
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Solution
The fourth proportional to 618,220,918.98, 853,153,186.77 and 335,968,962.54 is: 463,641,688.99
Step by Step Solution
- Step 1: Write the proportion equation
618,220,918.98 : 853,153,186.77 = 335,968,962.54 : x - Step 2: Convert to fraction form
618,220,918.98/853,153,186.77 = 335,968,962.54/x - Step 3: Cross multiply
618,220,918.98x = 853,153,186.77 × 335,968,962.54 - Step 4: Simplify right side
618,220,918.98x = 286,632,991,046,811,776 - Step 5: Solve for x
x = 286,632,991,046,811,776/618,220,918.98 - Step 6: Final answer
x = 463,641,688.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.