Finding the Fourth Proportional to 76,078,465.88, 104,934,160.04 and 69,819,205.84
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Solution
The fourth proportional to 76,078,465.88, 104,934,160.04 and 69,819,205.84 is: 96,300,834.08
Step by Step Solution
- Step 1: Write the proportion equation
76,078,465.88 : 104,934,160.04 = 69,819,205.84 : x - Step 2: Convert to fraction form
76,078,465.88/104,934,160.04 = 69,819,205.84/x - Step 3: Cross multiply
76,078,465.88x = 104,934,160.04 × 69,819,205.84 - Step 4: Simplify right side
76,078,465.88x = 7,326,419,719,480,263 - Step 5: Solve for x
x = 7,326,419,719,480,263/76,078,465.88 - Step 6: Final answer
x = 96,300,834.08
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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.