Finding the Fourth Proportional to 767,476,718.51, 1,059,121,062.53 and 415,052,709.21
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Solution
The fourth proportional to 767,476,718.51, 1,059,121,062.53 and 415,052,709.21 is: 572,774,464.40
Step by Step Solution
- Step 1: Write the proportion equation
767,476,718.51 : 1,059,121,062.53 = 415,052,709.21 : x - Step 2: Convert to fraction form
767,476,718.51/1,059,121,062.53 = 415,052,709.21/x - Step 3: Cross multiply
767,476,718.51x = 1,059,121,062.53 × 415,052,709.21 - Step 4: Simplify right side
767,476,718.51x = 439,591,066,382,375,040 - Step 5: Solve for x
x = 439,591,066,382,375,040/767,476,718.51 - Step 6: Final answer
x = 572,774,464.40
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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.