Finding the Fourth Proportional to 977,540,478.09, 1,349,054,327.19 and 606,382,083.69
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Solution
The fourth proportional to 977,540,478.09, 1,349,054,327.19 and 606,382,083.69 is: 836,837,340.52
Step by Step Solution
- Step 1: Write the proportion equation
977,540,478.09 : 1,349,054,327.19 = 606,382,083.69 : x - Step 2: Convert to fraction form
977,540,478.09/1,349,054,327.19 = 606,382,083.69/x - Step 3: Cross multiply
977,540,478.09x = 1,349,054,327.19 × 606,382,083.69 - Step 4: Simplify right side
977,540,478.09x = 818,042,373,932,483,328 - Step 5: Solve for x
x = 818,042,373,932,483,328/977,540,478.09 - Step 6: Final answer
x = 836,837,340.52
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Double scale
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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.